These species need (more) photos Illustrated Plant List

Nick Kurzenko

2002 Timothy D. Ives

Abronia gracilis Graceful sand verbena, Slender sand verbena

native
Perennial herb

2022 Zoya Akulova

Abutilon abutiloides shrubby Indian mallow

• rare native
Perennial herb

2014 Wynn Anderson

Abutilon parvulum Dwarf indian mallow, Little abutilon

• rare native
Perennial herb

2005 James M. Andre

Acacia farnesiana Sweet acacia

non-native
Tree

2006 Steve Matson

2017 Wynn Anderson

2006 Chet Blackburn

Acacia paradoxa Kangaroo thorn

• invasive non-native
Shrub

2022 Rocky Bajada

2022 Katherine Stratton

Acaena pallida Pale biddy-biddy

non-native
Perennial herb

2011 Eric Wrubel

Acamptopappus sphaerocephalus var. hirtellus Hairy goldenhead, Rayless goldenhead, Round headed goldenhead

native
Shrub

Acamptopappus sphaerocephalus var. hirtellus

2003 James M. Andre

2012 James M. Andre

1978 Dean Wm. Taylor

Acanthomintha duttonii San mateo thorn mint

• rare native
Annual herb

2011 Aaron Schusteff

2023 Morgan Stickrod

2013 Lech Naumovich

Acanthomintha ilicifolia San Diego thorn mint

• rare native
Annual herb

2023 Eric Koberle

2023 Keir Morse

Acanthoscyphus parishii var. cienegensis Cienega seca oxytheca

• rare native
Annual herb

Acanthoscyphus parishii var. cienegensis

2018 Keir Morse

Acer campestre Hedge maple

non-native
Tree, Shrub

2008 Dr. Amadej Trnkoczy

2006 Ivo Petrich

2020 Zoya Akulova

Acer glabrum var. douglasii Douglas maple

native
Tree, Shrub

2018 Susan McDougall

2017 Thayne Tuason

2018 Susan McDougall

Acer palmatum Japanese maple

non-native
Tree

2005 Louis-M. Landry

2020 Zoya Akulova

2005 Louis-M. Landry

Acer platanoides Norway maple

non-native
Tree, Shrub

2010 Phil Pullen

2016 Zoya Akulova

2004 Dr. Amadej Trnkoczy

Acer rubrum Red maple

non-native
Tree

2010 Louis-M. Landry

2013 Ramona Robison

2005 George Rembert

Acer saccharum Sugar maple

non-native
Tree

2016 Keir Morse

2005 Joseph Dougherty/ecology.org

2006 Louis-M. Landry

Achlys triphylla ssp. triphylla Deer foot, Three-leaf deer foot

native
Perennial herb

2023 Sam Abercrombie

2014 John Doyen

2011 Vernon Smith

Acleisanthes longiflora Angel trumpets, Angeltrumpet, Yerba de la rabia

• rare native
Perennial herb

2013 Richard Spellenberg

2017 Wynn Anderson

2017 Keir Morse

Acleisanthes nevadensis Desert wing-fruit

• rare native
Perennial herb

2005 James M. Andre

2020 Neal Kramer

2005 James M. Andre

Acmispon argophyllus var. adsurgens San clemente island bird's-foot trefoil

• rare native
Perennial herb

1902 Dylan Neubauer

2011 Dylan Neubauer

Acmispon dendroideus var. traskiae San clemente island lotus

• rare native
Shrub

2011 Dylan Neubauer

Acmispon junceus var. biolettii Bioletti's rush lotus

native
Perennial herb

2021 Toni Corelli

Acmispon procumbens var. procumbens Silky california broom

native
Perennial herb, Shrub

2008 Keir Morse

2012 Neal Kramer

2012 Gary McDonald

Aconitum delphiniifolium Larkspurleaf monkshood

non-native
Perennial herb

Gerald and Buff Corsi 2015 California Academy of Sciences

Aconogonon newberryi Newberry's smartweed

native
Perennial herb

2023 Ryan O'Dell

Acorus calamus Sweetflag

non-native
Perennial herb

ACORACEAE

2010 Louis-M. Landry

Aegilops geniculata Ovate goatgrass

non-native
Annual grass

2006 Luigi Rignanese

Aeschynomene rudis Red aeschynomene, Zigzag jointvetch

non-native
Annual, Perennial herb

2001 CDFA

Agave deserti var. simplex Desert agave

native
Shrub

2007 Charles E. Jones

Agave shawii Coastal agave, Shaw's agave

native
Shrub

2011 Keir Morse

2022 Olga Batalov

2011 Keir Morse

Agave shawii var. shawii Shaw's agave

• rare native
Shrub

2011 Keir Morse

Ageratina herbacea Fragrant snakeroot

• rare native
Perennial herb

2010 James M. Andre

2012 Keir Morse

2010 James M. Andre

Ageratum conyzoides Tropical whiteweed

non-native
Annual, Perennial herb

2010 Moorea Biocode

Agoseris apargioides var. maritima Woolly goat chicory

native
Perennial herb

1995 Saint Mary's College of California

Agrimonia striata Roadside agrimony

native
Perennial herb

2008 Louis-M. Landry

2006 Louis-M. Landry

2008 Louis-M. Landry

Agrostis elliottiana Elliott's bentgrass

native
Annual grass

2005 Steve Matson

Agrostis hooveri Hoover's bent grass, Hoover's bentgrass

• rare native
Perennial grass

2008 Adonis (Don) Tate

2017 Adonis (Don) Tate

Agrostis humilis Mountain bent grass

• rare native
Perennial grass

2004 Steve Matson

2015 Belinda Lo

Agrostis tandilensis Kennedy's bentgrass

non-native
Annual grass

University and Jepson Herbaria

Ajuga pyramidalis Pyramid bugle

non-native
Perennial herb

2012 Dr. Amadej Trnkoczy

2007 Dr. Amadej Trnkoczy

Albizia lebbeck Woman's tongue

non-native
Tree, Shrub

2010 Moorea Biocode

Alhagi maurorum Camel thorn

• invasive non-native
Shrub

2001 CDFA

Allionia incarnata var. villosa Trailing windmills

native
Annual, Perennial herb

2017 John Doyen

2012 Keir Morse

Allium bolanderi var. mirabile Bolander's onion

native
Perennial herb (bulb)

2016 Keir Morse

Allium fimbriatum var. mohavense Mojave fringed onion, Mojave onion

native
Perennial herb (bulb)

2023 Bob Steele

Allium geyeri var. tenerum bulbil onion

• rare native
Perennial herb (bulb)

2019 Trent M. Draper

2011 Ryan Batten

Allium howellii var. clokeyi Clokey's onion, Mt. pinos onion

• rare native
Perennial herb (bulb)

2023 Bryant Baker

2016 Keir Morse

Allium howellii var. sanbenitense San benito onion

• rare native
Perennial herb (bulb)

2023 Ryan O'Dell

2024 Ryan O'Dell

2023 Ryan O'Dell

Allium lacunosum var. micranthum Small flowered pitted onion, White fringed onion

native
Perennial herb (bulb)

2008 Keir Morse

2018 Aaron Schusteff

Allium munzii Munz's onion

• rare native
Perennial herb (bulb)

2003 Guy Bruyea

2011 Sally Trnka

Allium nevadense Nevada onion

• rare native
Perennial herb (bulb)

2023 Dana York

2012 John Doyen

Allium paniculatum Mediterranean onion

non-native
Perennial herb (bulb)

2001 CDFA

Allium paniculatum var. paniculatum Panicled onion

non-native
Perennial herb (bulb)

2001 CDFA

Allium sanbornii var. congdonii Congdon's onion

• rare native
Perennial herb (bulb)

2023 Mike Russler

Allium sativum Cultivated garlic

non-native
Perennial herb (bulb)

2005 Luigi Rignanese

Allium tolmiei Tolmie's onion

native
Perennial herb (bulb)

2016 John Doyen

2018 John Doyen

Allium tolmiei var. tolmiei Tolm's onion, Tolmei's onion

native
Perennial herb (bulb)

2016 John Doyen

2018 John Doyen

2005 Christopher L. Christie

Allium tribracteatum Three bracted onion, Threebract onion

• rare native
Perennial herb (bulb)

2023 Mike Russler

2004 Dean Wm. Taylor

Allium yosemitense Yosemite onion

• rare native
Perennial herb (bulb)

2012 Lynn Robertson

2010 Barry Breckling

Alnus viridis Green alder

native
Tree, Shrub

BETULACEAE

2023 Zane Walker

2021 Julie A. Kierstead

2007 Dr. Amadej Trnkoczy

Alnus viridis ssp. sinuata Sitka alder

native
Tree, Shrub

BETULACEAE

2021 Julie A. Kierstead

2018 Julie Kierstead Nelson

Alopecurus aequalis var. sonomensis Sonoma alopecurus, Sonoma shortawn foxtail

• rare native
Perennial grass

2001 Doreen L. Smith

2013 Vernon Smith

2011 2011 Eric Wrubel/NPS

Alopecurus geniculatus Marsh foxtail, Water foxtail

native
Perennial grass

2013 Robert Sikora

2021 Aaron Arthur

2009 Trent M. Draper

Aloysia wrightii Oreganillo, Vera dulce, Wright lippia

• rare native
Shrub

2011 Keir Morse

Alyogyne huegelii Blue hibiscus

non-native

2009 Joseph Dougherty, M.D./ecology.org

Amaranthus arenicola Sandhill amaranth

non-native
Annual herb

2015 Wynn Anderson

Amaranthus caudatus Quilete

non-native
Annual herb

2005 Louis-M. Landry

Amaranthus hybridus Slender pigweed, Slim amaranth

non-native
Annual herb

2016 Jean Pawek

Amaranthus torreyi Sandhill amaranth

native
Annual herb

2015 Keir Morse

Amaranthus tuberculatus var. rudis Common waterhemp

non-native
Annual herb

2014 Zoya Akulova

Amaranthus watsonii Watson's amaranth

• rare native
Annual herb

2003 Debra Valov

2004 Debra Valov

Ambrosia ambrosioides Ambrosia bursage, Ambrosia leaved burbush

native
Perennial herb

2020 John Doyen

2019 John Doyen

Ambrosia chenopodiifolia San diego bur sage, San diego bursage

• rare native
Shrub

2020 Keir Morse

2012 Keir Morse

Ambrosia ilicifolia Holly leaved burbush, Hollyleaf bursage

native
Shrub

2011 John Doyen

Ambrosia salsola var. pentalepis Five scaled burrobrush

native
Shrub

2005 Steve Matson

2004 James M. Andre

Ambrosia trifida Giant ragweed

• invasive non-native
Annual herb

2015 Richard Spellenberg

2008 Louis-M. Landry

2010 Jean Pawek

Ambrosia Xplatyspina

native
Perennial herb

2003 Michael Charters

Ammophila breviligulata American beach grass, American beachgrass

non-native
Perennial grass

2014 Trent M. Draper

Ampelopsis brevipedunculata Amur peppervine

non-native
Perennial herb, Vine

Amphibromus nervosus Common swamp wallaby grass

non-native
Perennial grass

2017 Zoya Akulova

Amphipappus fremontii var. spinosus Spiny fremont's chaffbush

native
Shrub

2017 John Doyen

2005 Keir Morse

2014 Richard Spellenberg

Amsinckia grandiflora Large flowered fiddleneck, Largeflowered fiddleneck

• rare native
Annual herb

2017 John Doyen

Amsinckia spectabilis var. microcarpa Small fruit seaside fiddleneck

native
Annual herb

1997 Christopher L. Christie

1997 Christopher L. Christie

2020 David Greenberger

Amsinckiopsis kingii var. harknessii Northern Great Basin popcornflower

native
Annual herb

2022 Tim Messick

2005 Steve Matson

Plagiobothrys kingii var. kingii Southern Great Basin popcornflower

native
Annual herb

2019 Steve Matson

Anchusa azurea Blue alkanet, Italian bugloss

non-native
Perennial herb

2011 Debra L. Cook

2007 Luigi Rignanese

Ancistrocarphus keilii Santa ynez groundstar

• rare native
Annual herb

2023 Kristen Nelson

Androsace occidentalis Western rockjasmine

native
Annual herb

PRIMULACEAE

2016 Keir Morse

Anethum graveolens Dill

non-native
Annual herb

2011 Louis-M. Landry

Angelica callii Call's angelica

• rare native
Perennial herb

2014 Steve Matson

Anoda cristata Violettas

non-native
Annual herb

2012 Zoya Akulova

Antennaria luzuloides Rush pussytoes, Silvery brown pussytoes

native
Perennial herb

2010 Gerald Carr

Antennaria luzuloides ssp. luzuloides Rush pussytoes

native
Perennial herb

2010 Gerald Carr

Antennaria marginata White margined pussytoes, Whitemargin pussytoes

• rare native
Perennial herb

2010 Duncan S. Bell

2009 Duncan S. Bell

Antennaria microphylla Littleleaf pussytoes

native
Perennial herb

2015 Barry Breckling

2007 Matt Below

2015 Barry Breckling

Antennaria parvifolia Small leaf pussytoes

native
Perennial herb

2009 Barry Breckling

2013 Jean Pawek

Antennaria suffrutescens Evergreen everlasting, Evergreen pussytoes

• rare native
Perennial herb

2013 Dana York

Anthemis arvensis Corn chamomile

non-native
Annual herb

2008 Keir Morse

2016 Richard Spellenberg

2008 Keir Morse

Anthyllis vulneraria Common kidneyvetch

non-native
Perennial herb

2006 Luigi Rignanese

2007 Dr. Amadej Trnkoczy

Antirrhinum majus Common snapdragon, Garden snapdragon

non-native
Annual, Perennial herb

2011 Nick Kurzenko

2005 Louis-M. Landry

2012 Zoya Akulova

Aphyllon californicum ssp. grayanum Gray's california broom rape

native
Perennial herb (parasitic)

2014 Kirsten Bovee

2006 George W. Hartwell

Aphyllon pinorum Pinewoods broom rape

native
Perennial herb (parasitic)

2023 Julie A. Kierstead

Aphyllon validum Rock creek broom rape

native
Perennial herb (parasitic)

2023 Charles Russell

2023 Seth Tantuico

Aphyllon validum ssp. howellii Howell's broomrape

native
Perennial herb (parasitic)

1997 Dean Wm. Taylor

2023 Charles Russell

Aphyllon validum ssp. validum Rock creek broomrape

native
Perennial herb (parasitic)

1999 Alison Colwell

2010 California Academy of Sciences

Arabis holboellii Holboell's rock cress, Holboell's rockcress

native
Perennial herb

2007 Dr. Mark S. Brunell

2007 Norman Jensen

2009 Gary A. Monroe

Arabis pycnocarpa Creamflower rockcress

native
Perennial herb

2009 Dr. Amadej Trnkoczy

Arabis pycnocarpa var. pycnocarpa Hairy fruit rock cress

native
Perennial herb

2016 Keir Morse

Arabis repanda var. greenei Greene's rock cress, Greene's rockcress

• rare native
Perennial herb

2014 Steve Matson

2014 Dana York

2010 Barry Breckling

Arabis rigidissima var. rigidissima Trinity mountain rockcress, Trinity mtns. rock cress

• rare native
Perennial herb

2011 Sierra Pacific Industries

2015 Dana York

Araucaria columnaris New caledonia pine

non-native
Tree

ARAUCARIACEAE

2010 Moorea Biocode

2017 Ron Vanderhoff

2017 Zoya Akulova

Arceuthobium douglasii Douglas dwarf mistletoe, Douglas's dwarf mistletoe

native
Perennial herb (parasitic)

VISCACEAE

2017 Thayne Tuason

Arctium lappa Great burdock, Greater burdock

non-native
Perennial herb

2005 Louis-M. Landry

2006 Louis-M. Landry

Arctomecon californica California bearpoppy

non-native
Perennial herb

2013 John Doyen

Arctostaphylos glandulosa ssp. adamsii Adams' manzanita

native
Shrub

2003 Charles E. Jones

1993 David Graber

Arctostaphylos glutinosa Schreiber's manzanita

• rare native
Shrub

2011 Neal Kramer

2011 Joey Malone

2011 Neal Kramer

Arctostaphylos ohloneana Ohlone manzanita

• rare native
Shrub

2011 Dylan Neubauer

2011 Joey Malone

2011 Neal Kramer

Arctostaphylos peninsularis ssp. peninsularis Peninsular manzanita

native
Shrub

Arctostaphylos peninsularis ssp. peninsularis

2006 Steve Matson

Arctotis fastuosa Monarch of the veld, cape daisy

non-native
Annual herb

2008 Louis-M. Landry

Arctotis venusta Blue-eyed african daisy

non-native
Perennial herb

2007 John M. Taylor

Arenaria lanuginosa Spreading sandwort

native
Perennial herb

2008 Michael Charters

2009 Thomas Stoughton

2008 Michael Charters

Arenaria lanuginosa var. saxosa Rock sandwort

• rare native
Perennial herb

2007 John Doyen

2008 Michael Charters

2009 Thomas Stoughton

Arenaria paludicola Marsh sandwort

• rare native
Perennial herb

2011 CNPS, San Luis Obispo Chapter

2013 Anuja Parikh and Nathan Gale

2012 Chris Winchell

Argyrochosma limitanea Southwestern false cloak fern

native
Fern (rhizomatous)

2017 John Doyen

Aristida californica California threeawn

native
Perennial grass

2012 Keir Morse

Aristida dichotoma Churchmouse threeawn

non-native
Annual grass

2013 Steve Matson

Aristida divaricata Poverty three awn, Spreading threeawn

native
Perennial grass

2013 Steve Matson

Aristida purpurea var. fendleriana Fendler three awn, Fendler's threeawn

native
Perennial grass

2012 Steve Matson

2013 Steve Matson

2013 James M. Andre

Aristida purpurea var. parishii Parish three awn, Parish's threeawn

native
Perennial grass

2016 Keir Morse

Aristida purpurea var. purpurea Purple three awn, Purple threeawn

native
Perennial grass

2010 Michelle Cloud-Hughes

2013 Steve Matson

Artemisia abrotanum Southernwood

non-native
Shrub

2007 Louis-M. Landry

2005 Louis-M. Landry

Artemisia absinthium Absinthium

non-native
Shrub

2006 Louis-M. Landry

Artemisia campestris Field sagewort

native
Perennial herb

2010 Louis-M. Landry

2012 Richard Spellenberg

Artemisia ludoviciana ssp. candicans Gray mugwort, White sagebrush

native
Perennial herb

2018 Susan McDougall

Artemisia nesiotica Island sage brush, Island sagebrush

• rare native
Shrub

2012 Gary A. Monroe

2006 Vince Scheidt

Artemisia tridentata ssp. wyomingensis Wyoming big sagebrush, Wyoming sagebrush

native
Shrub

2000 Gary A. Monroe

2012 Jean Pawek

2000 Gary A. Monroe

Artemisia tripartita Threetip sagebrush

native
Shrub

2013 Dean Taylor

Artemisia tripartita ssp. tripartita Threetip sagebrush

• rare native
Shrub

2013 Dean Taylor

Artemisia vulgaris Common wormwood

non-native
Perennial herb, Shrub

2007 Louis-M. Landry

2005 Louis-M. Landry

Asarum marmoratum Marbled wild ginger, Marbled wildginger

• rare native
Perennial herb (rhizomatous)

ARISTOLOCHIACEAE

2003 Norman Jensen

2013 Ron Clark

Asclepias asperula Spider milkweed

native
Perennial herb

2014 Ron Wolf

2010 Judy McBride

2014 Wynn Anderson

Asclepias asperula ssp. asperula Antelope horns, Spider milkweed

• rare native
Perennial herb

2013 James M. Andre

Asclepias cryptoceras Dwarf milkweed, Humboldt mountains milkweed, Pallid milkweed

native
Perennial herb

2019 Steve Matson

Asclepias fruticosa African milkweed

non-native
Perennial herb

2010 Dr. Mark S. Brunell

Asclepias latifolia Broadleaf milkweed

native
Shrub

2019 Richard Spellenberg

Asclepias linaria Needle leaf milkweed, Pineneedle milkweed

non-native
Perennial herb, Shrub

2008 Neal Kramer

2017 John Doyen

2008 Neal Kramer

Asclepias nyctaginifolia Mojave milkweed

• rare native
Perennial herb

2012 Duncan S. Bell

2010 James M. Andre

2010 Amber Swanson

Asclepias tuberosa Butterfly milkweed

non-native
Shrub

2009 Barry Breckling

2003 Jeff Abbas

2003 Lisa Powers

Asclepias tuberosa ssp. interior Butterfly milkweed

non-native
Shrub

2005 Robert Sivinski

2016 Keir Morse

Ascophyllum nodosum Yellow tang

non-native
seaweed

FUCACEAE

2011 Phil Pullen

Asperugo procumbens German madwort

non-native
Annual herb

2008 Trent M. Draper

Asplenium trichomanes spleenwort

native
Fern (rhizomatous)

ASPLENIACEAE

2011 Zoya Akulova

2013 Eric White

2011 Zoya Akulova

Asplenium trichomanes ssp. trichomanes spleenwort

• rare native
Fern (rhizomatous)

ASPLENIACEAE

2012 Dana York

Astragalus agrestis Purple loco weed

• rare native
Perennial herb

2012 Jean Pawek

2013 Ron Wolf

Astragalus allochrous Halfmoon milkvetch

native
Perennial herb

2006 James M. Andre

Astragalus allochrous var. playanus Halfmoon milkvetch, Playa milk vetch

• rare native
Perennial herb

2006 James M. Andre

2012 Steve Matson

2006 James M. Andre

Astragalus andersonii Anderson's milkvetch, Anderson's rattle weed

native
Perennial herb

2012 Steve Matson

2017 John Doyen

Astragalus anxius Troubled milk vetch, Troubled milkvetch

• rare native
Perennial herb

2012 Steve Matson

2009 F. Gauna

Astragalus aridus Annual desert milk vetch, Annual desert milkvetch

native
Annual herb

2011 Keir Morse

Astragalus atratus Mourning milkvetch

native
Perennial herb

2001 Dana York

Astragalus atratus var. mensanus Darwin mesa milk vetch, Darwin mesa milkvetch

• rare native
Perennial herb

2001 Dana York

Astragalus didymocarpus var. milesianus Dwarf white milkvetch, Miles' milk vetch

• rare native
Annual herb

2012 Steve Matson

2014 Chris Winchellll

Astragalus didymocarpus var. obispoensis San luis obispo milk vetch, San obispo milkvetch

native
Annual herb

Astragalus didymocarpus var. obispoensis

2012 Steve Matson

Astragalus douglasii var. perstrictus Jacumba milk vetch, Jacumba milkvetch

• rare native
Perennial herb

2020 David Greenberger

2010 Tamara Klug

2012 Vince Scheidt

Astragalus hornii Horn's milkvetch

native
Annual herb

2013 Neal Kramer

2019 Neal Kramer

Astragalus hornii var. hornii Horn's milk vetch

• rare native
Annual herb

2013 Neal Kramer

Astragalus lentiginosus var. antonius San antonio milk vetch, San antonio milkvetch

• rare native
Perennial herb

2014 Keir Morse

Astragalus lentiginosus var. idriensis Freckled milkvetch, New idria milk vetch

native
Annual, Perennial herb

2023 Ryan O'Dell

Astragalus lentiginosus var. lentiginosus Freckled milk vetch, Freckled milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. lentiginosus

2005 Steve Matson

Astragalus lentiginosus var. sesquimetralis Mono locoweed, Sodaville milk vetch

• rare native
Perennial herb

Astragalus lentiginosus var. sesquimetralis

Margaret Williams and CNPS

2006 James Morefield

2004 Jeffrey M. Kane

Astragalus macrodon Salinas milk vetch, Salinas milkvetch

• rare native
Perennial herb

2010 David Keil

2022 Debra Cook

Astragalus nevinii San clemente island milk vetch, San clemente island milkvetch

• rare native
Perennial herb

2011 Dylan Neubauer

2011 Neal Kramer

2012 Steve Matson

Astragalus newberryi var. castoreus Newberry's milkvetch

native
Perennial herb

2017 Xeric Specialties -Cindy Hopkins & Dave Silverman

2017 Xeric Specialties - Cindy Hopkins & Dave Silverman

Astragalus nutans Lax flowered locoweed, Providence Mountain milkvetch

• rare native
Annual herb

2010 James M. Andre

2017 John Doyen

2016 John Doyen

Astragalus nuttallianus var. austrinus Smallflowered milkvetch, Southern small flowered milk vetch

native
Annual herb

2015 Wynn Anderson

Astragalus nyensis Nye milk-vetch

• rare native
Annual herb

2005 James M. Andre

Astragalus oocarpus San diego milk vetch, San diego milkvetch

• rare native
Perennial herb

2009 Andrew Borcher

2009 Vince Scheidt

Astragalus pachypus var. jaegeri Jaeger's milk vetch, Jaeger's milkvetch

• rare native
Shrub

2012 Keir Morse

Astragalus pachypus var. pachypus Thick pod milk vetch, Thickpod milkvetch

native
Perennial herb

2013 Debra L. Cook

2012 Neal Kramer

2019 Aaron Schusteff

Astragalus palmeri Palmer locoweed, Palmer's milk vetch, Palmer's milkvetch

native
Perennial herb

2013 Keir Morse

Astragalus preussii Preuss' milkvetch, Preuss's milk vetch

native
Perennial herb

2020 Steve Matson

2016 John Doyen

Astragalus preussii var. laxiflorus Lancaster milk vetch, Lancaster milkvetch

• rare native
Perennial herb

2010 James M. Andre

2016 John Doyen

2010 James M. Andre

Astragalus preussii var. preussii Desert milkvetch, Preuss's milk vetch

• rare native
Perennial herb

2015 John Doyen

Astragalus pulsiferae var. suksdorfii Suksdorf's milk vetch, Suksdorf's milkvetch

• rare native
Perennial herb

Anthony Baniaga

2014 Sierra Pacific Industries

2009 Sierra Pacific Industries

Astragalus rattanii var. rattanii Rattan's milk vetch, Rattan's milkvetch

• rare native
Perennial herb

2012 Steve Matson

Astragalus sabulonum Gravel milk vetch, Gravel milkvetch

• rare native
Annual herb

2012 Steve Matson

2005 James M. Andre

Astragalus tener var. ferrisiae Ferris' milkvetch, Ferris's milk vetch

• rare native
Annual herb

2019 Ian Cain

Astragalus tener var. titi Coastal dunes milk vetch, Coastal dunes milkvetch

• rare native
Annual herb

2006 Bob Huettmann

2005 Bob Huettmann

2004 Bob Huettmann

Astragalus tephrodes Ashen milkvetch

native
Perennial herb

2015 Richard Spellenberg

Astragalus traskiae Trask's milk vetch, Trask's milkvetch, Trasks locoweed

• rare native
Perennial herb

2012 Gary A. Monroe

2014 John Game

Astragalus umbraticus Bald mountain milkvetch

• rare native
Perennial herb

2013 Scot Loring

2015 Adrienne Simmons

2011 Sierra Pacific Industries

Astragalus whitneyi var. lenophyllus Balloonpod milkvetch, Whitney's milk vetch

• rare native
Perennial herb

Astrolepis cochisensis Cochise scaly cloakfern

native
Fern

2011 Keir Morse

Athysanus unilateralis Ladiestongue mustard

native
Annual herb

2023 R.A. Chasey

2008 Aaron Schusteff

Silene armeria

non-native

2019 Ron Vanderhoff

2023 Ron Vanderhoff

Atriplex argentea var. argentea Silverscale saltbush

native
Annual herb

2003 George W. Hartwell

2009 Zoya Akulova

Atriplex canescens var. laciniata Caleb saltbush

native
Shrub

2016 Keir Morse

Atriplex cordulata Heartscale

native
Annual herb

1994 Robert E. Preston, Ph.D.

2003 George W. Hartwell

2011 Jean Pawek

Atriplex cordulata var. cordulata Heartscale

• rare native
Annual herb

2003 George W. Hartwell

1994 Robert E. Preston, Ph.D.

2011 Jean Pawek

Atriplex cordulata var. erecticaulis Earlimart orach

• rare native
Annual herb

2009 Robert E. Preston, Ph.D.

Atriplex elegans var. elegans Wheelscale saltbush

native
Annual herb

2011 Neal Kramer

Atriplex gardneri Gardner's saltbush

native
Perennial herb

2010 Trent M. Draper

2017 Trent M. Draper

Atriplex gardneri var. falcata Salt sage, Sickle saltbush

• rare native
Perennial herb

2021 Sarah Tona

2013 Trent M. Draper

Atriplex micrantha Twoscale saltbush

non-native
Annual herb

2013 Trent M. Draper

2013 Mary Winter

Mary Winter

Atriplex nummularia Bluegreen saltbush

non-native
Shrub

Atriplex pacifica Pacific saltbrush, South coast saltbush, South coast saltscale

• rare native
Annual herb

2017 Keir Morse

Atriplex persistens Pool orache, Pool oracle, Sacramento saltbush

• rare native
Annual herb

2003 George W. Hartwell

2000 Robert E. Preston, Ph.D.

2010 Chris Winchell

Atriplex subtilis Deltoid bract saltbush

• rare native
Annual herb

2010 Robert E. Preston, Ph.D.

2000 Robert E. Preston, Ph.D.

Aubrieta deltoidea Garden aubrieta

non-native
Perennial herb

2005 Louis-M. Landry

Avena occidentalis Western oat, Western wild oats

non-native
Annual grass

2002 James B. Gratiot

Avena sterilis Animated oat, Sterile oats

non-native
Annual grass

2014 Keir Morse

Avicennia marina var. australasica Gray mangrove

non-native
Tree

ACANTHACEAE

Baccharis brachyphylla Short leaved baccharis, Short leaved baccharis, Shortleaf baccharis

native
Shrub

2012 Keir Morse

Baccharis plummerae ssp. glabrata San simeon baccharis

• rare native
Shrub

2011 Chris Winchell

2004 Laura Ann Eliassen

2011 Chris Winchell

Baccharis vanessae Encinitas baccharis

• rare native
Shrub

2012 Keir Morse

Bahia neomexicana Many flowered bahia

• rare native
Annual herb

2011 Keir Morse

Balsamorhiza hirsuta Hairy balsam root

native
Perennial herb

2002 Dean Wm. Taylor

Balsamorhiza incana Hoary balsamroot

native
Perennial herb

2015 Richard Spellenberg

2011 RT Hawke

Barbarea vulgaris Bitter wintercress, Common wintercress, Yellow rocket

non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

2011 Steven Perry

2007 Dr. Amadej Trnkoczy

Bartramia ithyphylla Bartramia moss

native
Moss

BARTRAMIACEAE

2011 calbryos group

2013 calbryos group

Bartramia pomiformis Bartramia moss

native
Moss

BARTRAMIACEAE

2012 Chris Wagner

Bartramia stricta Bartramia moss

native
Moss

BARTRAMIACEAE

2024 Diana Wahl

2012 John Game

Bauhinia galpinii African plume

non-native
Tree, Shrub

2015 Zoya Akulova

Bensoniella oregona Bensoniella

• rare native
Perennial herb

2010 John Game

2019 Jonathan Lee

2006 Dean Wm. Taylor

Berberis haematocarpa Red fruited mahonia

native
Shrub

2014 Richard Spellenberg

2016 Wynn Anderson

Berberis harrisoniana Harrison's barberry

• rare native
Shrub

2006 Aaron Schusteff

Berberis higginsiae Fremont's mahonia

• rare native
Shrub

2006 Rich Crawford

2013 Gary A. Monroe

2010 Zoya Akulova

Berberis pinnata ssp. insularis Island barberry

• rare native
Shrub

2006 Steve Matson

Berberis vulgaris Common barberry

non-native
Shrub

2004 Dr. Amadej Trnkoczy

Betula glandulosa Resin birch; scrub birch

• rare native
Shrub

BETULACEAE

2008 Sierra Pacific Industries

2023 Amy Rachkowski

2022 Julie A. Kierstead

Bidens bipinnata Spanish needles

native
Perennial herb

2016 Keir Morse

Bidens tripartita Threelobe beggarticks, Tickseed

non-native
Annual herb

2013 David popp

2014 Richard Spellenberg

Bituminaria bituminosa Arabian pea

non-native
Perennial herb

2005 Luigi Rignanese

2007 Dr. James D. Adams

2006 Luigi Rignanese

Blepharidachne kingii King's eyelash grass, King's eyelashgrass

• rare native
Perennial grass

2023 Dana York

Bloomeria crocea var. montana Mountain goldenstar

native
Perennial herb

2016 Keir Morse

Boechera constancei Constance's rock cress

• rare native
Perennial herb

2017 John Doyen

2008 Sierra Pacific Industries

2012 Lynn Robertson

Boechera davidsonii Davidson's rockcress

native
Perennial herb

2018 Dana York

Boechera divaricarpa Spreadingpod rockcress

native
Perennial herb

2009 Matt Below

2016 Keir Morse

Boechera hirshbergiae Hirshberg's rockcress

• rare native
Perennial herb

2010 Rebecca Wenk

2008 Jordan Zylstra

Boechera koehleri Koehler's rockcress

• rare native
Perennial herb

2023 Dee Shea Himes

2023 Dana York

Boechera lemmonii Lemmon's rockcress

native
Perennial herb

2018 John Doyen

2008 Aaron Schusteff

Boechera lincolnensis Lincoln rockcress

• rare native
Perennial herb

2005 Brent Miller

Boechera microphylla Small-leaved rock cress

• rare native
Perennial herb

2011 Mary Winter

Boechera pauciflora Hairy stem rockcress

native
Perennial herb

2016 Trent M. Draper

2023 Dana York

2018 John Doyen

Boechera peirsonii San bernardino rock cress

• rare native
Perennial herb

2011 Thomas Stoughton

Boechera rollei Rolle's rockcress

• rare native
Perennial herb

2012 Dana York

Boechera stricta Drummond's rockcress

native
Perennial herb

2010 Barry Breckling

2013 Debra L. Cook

Boechera suffrutescens Woody rockcress

native
Perennial herb

2014 Dana York

Boechera tiehmii Tiehm's rock cress

• rare native
Perennial herb

2016 John Doyen

Boechera xylopoda Bigfoot hybrid rockcress

native
Perennial herb

2006 Gary A. Monroe

2010 Neal Kramer

Boechera yorkii Last chance rock cress

• rare native
Perennial herb

2005 Dana York

Boehmeria cylindrica Smallspike false nettle

non-native
Perennial herb

URTICACEAE

2007 Robert E. Preston, Ph.D.

2008 Louis-M. Landry

2007 Robert E. Preston, Ph.D.

Boerhavia coulteri Coulter's spiderling

native
Annual herb

2011 Keir Morse

Boerhavia coulteri var. palmeri Coulter's spiderling

native
Annual herb

2011 Keir Morse

Boerhavia diffusa Red spiderling

non-native
Perennial herb

2018 Richard Spellenberg

Bolboschoenus fluviatilis River bulrush

native
Perennial grasslike herb

2010 Louis-M. Landry

Botrychium lunaria Common moonwort, Moonwort grapefern

• rare native
Fern (rhizomatous)

2014 Dr. Amadej Trnkoczy

2011 Ryan Batten

2007 Dr. Amadej Trnkoczy

Botrychium minganense Mingan moonwort

• rare native
Fern (rhizomatous)

2020 Belinda Lo

2011 Aaron E. Sims

2014 Sierra Pacific Industries

Botrychium montanum Western goblin

• rare native
Fern (rhizomatous)

2019 Belinda Lo

2012 Belinda Lo

Botrychium paradoxum Paradox moonwort

• rare native
Fern

2011 Ryan Batten

Botrychium pedunculosum Stalked moonwort

• rare native
Perennial herb

2011 Aaron E. Sims

Botrychium pinnatum Northwestern moonwort

• rare native
Fern (rhizomatous)

2007 John Game

2020 Belinda Lo

2007 Shawn DeCew

Botrychium pumicola Crater lake grapefern

• rare native
Fern

2006 Keir Morse

Botrychium simplex var. compositum Little grapefern

native
Fern

2022 richard mcneill

2011 Aaron Sims

Bouteloua aristidoides Needle grama

native
Annual grass

2012 Keir Morse

Bouteloua aristidoides var. aristidoides Needle grama

native
Annual grass

Bouteloua aristidoides var. aristidoides

2012 Keir Morse

Bouteloua eriopoda Black grama

• rare native
Perennial grass

2012 Duncan S. Bell

2015 Belinda Lo

Brassica juncea Brown mustard, India mustard

non-native
Annual herb

2022 Vernon Smith

2020 Zoya Akulova

2021 Zoya Akulova

Brassica napus Rapeseed

non-native
Annual herb

2011 Jean Pawek

2005 Louis-M. Landry

Brickellia knappiana Knapp brickellbush, Knapp brickellia, Knapp's brickellia

native
Shrub

2016 Dana York

Briza media Perennial quakinggrass

non-native
Annual grass

2007 Louis-M. Landry

2007 Dr. Amadej Trnkoczy

Brodiaea elegans ssp. hooveri Hoover's brodiaea, Hoover's harvest brodiaea

native
Perennial herb

2014 Robert E. Preston, Ph.D.

Brodiaea kinkiensis San clemente island brodiaea

• rare native
Perennial herb (bulb)

2011 Dylan Neubauer

2011 Neal Kramer

Bromus arizonicus Arizona brome

native
Annual grass

2017 Neil Uelman

Bromus berteroanus Chilean chess

non-native
Annual grass

2023 John Rawlings

2006 Steve Matson

Bromus briziformis Rattlesnake brome, Rattlesnake chess

non-native
Annual grass

2005 Steve Matson

Bromus hallii Hall's brome

native
Perennial grass

2021 Neal Kramer

Bromus racemosus Smooth brome

non-native
Annual grass

2011 Barry Breckling

Bromus richardsonii Fringed brome

native
Perennial grass

2021 Keir Morse

Bromus secalinus Chess brome, Rye brome

non-native
Annual grass

2005 Steve Matson

Bulbostylis capillaris Thread leaf beakseed, Threadleaf beakseed

• rare native
Annual grasslike herb

2011 Ryan Batten

2024 Anna Burns

1997 Dean Wm. Taylor

Buxbaumia aphylla Buxbaumia moss

native
Moss

BUXBAUMIACEAE

Buxbaumia viridis Buxbaumia moss

• rare native
Moss

BUXBAUMIACEAE

2013 Scot Loring

Caesalpinia pulcherrima Pride of barbados

non-native
Shrub

2006 Joseph Dougherty/ecology.org

2001 John Harper

2016 Wynn Anderson

Caesalpinia spinosa Tara

non-native
Tree, Shrub

2010 Michael O'Brien

Calamagrostis bolanderi Bolander's reedgrass

• rare native
Perennial grass (rhizomatous)

2017 Hayley Ross

2009 Zoya Akulova

Calamagrostis breweri Short hair reedgrass

native
Perennial grass

2006 Steve Matson

Calamagrostis crassiglumis Thurber's reed grass

• rare native
Perennial grass (rhizomatous)

2011 Vernon Smith

2000 Doreen L. Smith

2007 Steve Matson

Calamagrostis stricta ssp. stricta Slimstem reedgrass

native
Perennial grass (rhizomatous)

2007 Steve Matson

Calia secundiflora

non-native

Gerald and Buff Corsi2007 California Academy of Sciences

Callitriche fassettii Fassett's water starwort

native
Perennial herb

2011 Zoya Akulova

Calochortus syntrophus Callahan's mariposa lily

• rare native
Perennial herb

2018 Julie A. Kierstead

Calotropis procera Roostertree

non-native
Tree, Shrub, Perennial herb

ASCLEPIADACEAE

Gerald and Buff Corsi 2016 California Academy of Sciences

2016 Simon J. Tonge

Gerald and Buff Corsi2009 California Academy of Sciences

Caltha palustris Yellow marsh marigold

non-native
Perennial herb

2016 Keir Morse

2023 Todd Plummer

2006 Louis-M. Landry

Calycadenia spicata Spicate calycadenia, Spiked western rosinweed

native
Annual herb

2007 Christopher Bronny

2021 David popp

2007 Christopher Bronny

Calyptridium pulchellum Mariposa pussypaws

• rare native
Annual herb

2007 Chris Winchell

2016 Wendy Fisher

2007 Chris Winchell

Calyptridium pygmaeum Pygmy pussypaws

• rare native
Annual herb

2012 Michael Charters

2014 Joy England

Calystegia collina ssp. tridactylosa Coast range false bindweed, Three fingered morning glory

• rare native
Perennial herb

2011 Vernon Smith

BLM,Arcata Field Office

Calystegia macrostegia ssp. amplissima Island morning glory

• rare native
Perennial herb

2011 Dylan Neubauer

2011 Vince Scheidt

2011 Neal Kramer

Calystegia malacophylla var. berryi Berry's morning glory

• rare native
Perennial herb (rhizomatous)

2018 Dana York

Calystegia sepium ssp. binghamiae Bingham's false bindweed, Santa barbara morning glory

• rare native
Perennial herb (rhizomatous)

Camissonia kernensis ssp. gilmanii Gilman's evening primrose

native
Annual herb

2023 Olesya Konovalova

Camissonia sierrae ssp. alticola Mono hot springs evening primrose

• rare native
Annual herb

2015 Dana York

Camissoniopsis guadalupensis San clemente island evening-primrose

native
Annual herb

2011 Dylan Neubauer

Camissoniopsis guadalupensis ssp. clementina San clemente island evening-primrose

• rare native
Annual herb

Camissoniopsis guadalupensis ssp. clementina

2011 Dylan Neubauer

Camissoniopsis luciae Santa lucia sun cup

native
Annual herb

Gladys Lucille Smith1999 California Academy of Sciences

Campsis radicans Trumpet creeper

non-native
Vine

BIGNONIACEAE

2016 Keir Morse

Canbya aurea Golden pygmypoppy

non-native
Annual herb

2003 Christopher L. Christie

Cannabis sativa Herb, Marijuana

non-native
Annual herb

CANNABACEAE

2005 Louis-M. Landry

2017 Barry Rice

2005 Louis-M. Landry

Capsicum annuum Cayenne pepper

non-native
Annual, Perennial herb

2010 Hans J. Koch

2007 Luigi Rignanese

2010 Moorea Biocode

Caragana arborescens Siberian pea tree, Siberian peashrub

non-native
Tree, Shrub

2008 Louis-M. Landry

2005 Louis-M. Landry

2008 Louis-M. Landry

Cardamine cordifolia Heartleaf bittercress

native
Perennial herb

2009 Barry Breckling

2018 David popp

2010 Barry Breckling

Cardamine flexuosa Woodland bittercress

non-native
Annual, Biennial, Perennial herb

2008 Louis-M. Landry

2009 Phil Pullen

Cardamine nuttallii var. gemmata Nuttall's toothwort, Yellow tubered toothwort

• rare native
Perennial herb (rhizomatous)

2007 Keir Morse

Cardamine occidentalis Big western bittercress, Western toothwort

native
Perennial herb

2007 Fran�ois Meignant

2018 Susan McDougall

Carex angustata Narrow leaved sedge, Wide fruit sedge

native
Perennial grasslike herb

2018 Julie Kierstead Nelson

2003 Steve Matson

2003 Steve Matson

Carex aquatilis var. dives Sitka sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex arcta Bear sedge

• rare native
Perennial grasslike herb

2006 Dean Wm. Taylor

Carex buxbaumii Buxbaum's sedge

• rare native
Perennial grasslike herb

2010 Steve Matson

2017 Steve Matson

Carex cephalophora Oval leaf sedge

non-native
Perennial grasslike herb

2010 Louis-M. Landry

2003 Steve Matson

Carex comosa Bristly sedge, Longhair sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

1997 Dean Wm. Taylor

2009 Kerry Heise

Carex cyrtostachya Arching sedge

• rare native
Perennial grasslike herb

2016 Dean Wm. Taylor

Carex deflexa Mountain mat sedge

native
Perennial grasslike herb

2013 Dylan Neubauer

2010 Steve Matson

Carex deflexa var. boottii Mountain mat sedge

native
Perennial grasslike herb

2013 Dylan Neubauer

2010 Steve Matson

Carex disperma Soft leaf sedge, Softleaf sedge

native
Perennial grasslike herb

2014 Steve Matson

Carex fissuricola Cleft sedge

native
Perennial grasslike herb

2008 Steve Matson

2008 Steve Matson

Carex hassei Hasse's sedge, Salt sedge

native
Perennial grasslike herb

2014 Neal Kramer

2002 Dean Wm. Taylor

2014 Neal Kramer

Carex haydeniana Cloud sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex hirtissima Fuzzy sedge

native
Perennial grasslike herb

1997 Dean Wm. Taylor

2003 Steve Matson

Carex hystericina Bottlebrush sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Carex idahoa Idaho sedge

• rare native
Perennial grasslike herb (rhizomatous)

2012 Dylan Neubauer

2004 Steve Matson

Carex interior Inland sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex laeviculmis Smooth stem sedge, Smoothstem sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex lasiocarpa Slender sedge, Woolly fruited sedge

• rare native
Perennial grasslike herb (rhizomatous)

2014 Robert L. Carr

Carex lemmonii Lemmon's sedge

native
Perennial grasslike herb

2023 David popp

2010 Aaron Arthur

2003 Steve Matson

Carex lenticularis var. impressa Few ribbed sedge, Lakeshore sedge

native
Perennial grasslike herb

2002 Steve Matson

Carex lenticularis var. limnophila Lakeshore sedge

• rare native
Perennial grasslike herb

2003 Steve Matson

Carex leptalea Bristlestalked sedge, Flaccid sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Carex livida Livid sedge

• rare native
Perennial grasslike herb (rhizomatous)

University and Jepson Herbaria

Carex luzulina Wood rush sedge, Woodrush sedge

native
Perennial grasslike herb

2019 David Greenberger

2008 Sean B. Smith

2010 Keir Morse

Carex mariposana Mariposa sedge

native
Perennial grasslike herb

2007 Steve Matson

2003 Steve Matson

2007 Steve Matson

Carex mertensii Mertens' sedge

native
Perennial grasslike herb

2019 Matt Berger

2003 Steve Matson

2019 Matt C. Berger

Carex multicostata Many ribbed sedge, Manyrib sedge

native
Perennial grasslike herb

2002 Steve Matson

2003 Steve Matson

2002 Steve Matson

Carex neurophora Alpine nerve sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex pachycarpa Furrowed broomsedge

native
Perennial grasslike herb

2002 Steve Matson

Carex pachystachya Chamisso sedge, Thick headed sedge

native
Perennial grasslike herb

2003 Steve Matson

2008 Steve Matson

2003 Steve Matson

Carex parryana Parry's sedge

native
Perennial grasslike herb (rhizomatous)

2004 Steve Matson

2003 Steve Matson

Carex petasata Liddon sedge, Liddon's sedge

• rare native
Perennial grasslike herb

2009 Sierra Pacific Industries

2007 Dean Wm. Taylor, Ph.D.

Carex phaeocephala Brown head sedge, Dunhead sedge, Mountain hare sedge

native
Perennial grasslike herb

2013 Dana York

Carex praticola Meadow sedge

• rare native
Perennial grasslike herb

2013 Scot Loring

Carex preslii Presl's sedge

native
Perennial grasslike herb

2007 Keir Morse

Carex proposita Great smoky mountain sedge, Propose sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex saliniformis Salt sedge

• rare native
Perennial grasslike herb

2003 Steve Matson

2011 Halleh Paymard

Carex sartwelliana Yosemite sedge

native
Perennial grasslike herb

1982 Dean Wm. Taylor

2003 Steve Matson

Carex scoparia Pointed broom sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex scoparia var. scoparia Pointed broomsedge

• rare native
Perennial grasslike herb

2003 Steve Matson

Carex serpenticola Serpentine sedge

• rare native
Perennial grasslike herb

2016 Dana York

Carex specifica Narrow fruit sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex stevenii Steven's sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Carex stipata Awlfruit sedge

native
Perennial grasslike herb

2002 Dean Wm. Taylor

2008 Keir Morse

Carex stipata var. stipata Awl fruited sedge, Owlfruit sedge

native
Perennial grasslike herb

2008 Keir Morse

2002 Dean Wm. Taylor

2014 Trent M. Draper

Carex tahoensis Tahoe sedge

• rare native
Perennial grasslike herb

2003 Steve Matson

Carex texensis Texas sedge

non-native
Perennial grasslike herb

2003 Steve Matson

Carex tiogana Tioga pass sedge, Tioga sedge

• rare native
Perennial grasslike herb

2019 Dean Wm. Taylor

1995 Dean Wm. Taylor

2003 Steve Matson

Carex triquetra Triangular fruit sedge, Triangularfruit sedge

native
Perennial grasslike herb

2009 Adonis (Don) Tate

2015 Diane Etchison

2003 Steve Matson

Carex unilateralis Lateral sedge

native
Perennial grasslike herb

2023 Emily R. Allen

2009 Chris Wagner

2019 Wyatt Dooley

Carex vallicola Valley sedge

• rare native
Perennial grasslike herb

1998 Dean Wm. Taylor

2003 Steve Matson

Carex viridula Little green sedge

native
Perennial grasslike herb

2020 Dana York

Carex viridula ssp. viridula Little green sedge

• rare native
Perennial grasslike herb

2020 Dana York

Carthamus leucocaulos White stemmed distaff thistle, Whitestem distaff thistle

non-native
Annual herb

2001 CDFA

Cascadia nuttallii Nuttall's saxifrage

• rare native
Perennial herb

2023 Dana York

2013 Dana York

2021 Scot Loring

Castela emoryi Crucifixion thorn

• rare native
Shrub

SIMAROUBACEAE

2020 David Greenberger

2003 Michael Charters

2009 Duncan S. Bell

Castilleja ambigua var. heckardii Heckard's owl's clover

• rare native
Annual herb

2012 Chris Winchell

2006 Dave Hacker

Castilleja brevilobata Short-lobed paintbrush

• rare native
Perennial herb

2023 Dana York

Castilleja densiflora ssp. obispoensis Obispo indian paintbrush, San luis obispo owl's clover

native
Annual herb

2024 Kyle Suchy

2023 Kyle Suchy

2024 Kyle Suchy

Castilleja densiflora var. obispoensis San luis obispo owl's-clover

• rare native
Annual herb

2017 Aaron Schusteff

2010 Aaron E. Sims

2016 John B. Moule

Castilleja elata Siskiyou paintbrush

• rare native
Perennial herb

2023 Dana York

2005 Norman Jensen

Castilleja grisea San clemente island indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2011 Dylan Neubauer

Castilleja hispida Harsh indian paintbrush

native
Perennial herb (hemiparasitic)

2008 Matt Below

2021 Sheri Hagwood

2008 Matt Below

Castilleja lanata

native
Perennial herb (hemiparasitic)

2008 Larry Sward

2013 Wynn Anderson

Castilleja litoralis Oregon coast paintbrush

• rare native
Perennial herb

2024 Mary Ann Machi

2010 Vernon Smith

Castilleja mollis Soft leaved indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2000 John Game

Castilleja sulphurea Sulphur indian paintbrush

non-native
Perennial herb

2013 Gary A. Monroe

2015 Barry Breckling

2012 Jean Pawek

Castilleja uliginosa Pitkin marsh indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2002 John Game

Casuarina equisetifolia Australian Pine, Beach sheoak

• invasive non-native
Tree

CASUARINACEAE

2018 Zoya Akulova

2015 Zoya Akulova

2017 MCOSD EDRR

Caulanthus amplexicaulis var. barbarae Claspingleaf wild cabbage, Santa barbara jewelflower

• rare native
Annual herb

2023 Bryant Baker

2023 Zach Kinman

Caulanthus coulteri var. coulteri Coulter's jewel flower

native
Annual herb

2023 Martin Schenker

Caulanthus major var. nevadensis Sierra nevada wild cabbage, Slender wild cabbage

• rare native
Perennial herb

2008 Gary A. Monroe

1983 Gary A. Monroe

Ceanothus impressus var. nipomensis Nipomo mesa ceanothus, Santa barbara ceanothus

native
Shrub

2006 Steve Matson

2018 Susan McDougall

Ceanothus ophiochilus Vail lake ceanothus

• rare native
Shrub

2004 Brian Parker

Ceanothus sonomensis Sonoma ceanothus

• rare native
Shrub

2012 Jake Ruygt

2015 Susan McDougall

2012 Aaron Arthur

Ceanothus thyrsiflorus var. griseus Carmel ceanothus

native
Shrub

2006 Steve Matson

Gerald and Buff Corsi � 2009 California Academy of Sciences

2014 Robert Sikora

Ceanothus Xlorenzenii Whitethorn x tobacco brush

native
Tree, Shrub

1995 Saint Mary's College of California

Cedronella canariensis Herb of gilead

non-native
Perennial herb, Shrub

2010 Zoya Akulova

Celtis laevigata Sugarberry

native
Tree

CANNABACEAE

2017 Zoya Akulova

2016 Zoya Akulova

Centaurea cineraria Dusty miller

non-native
Perennial herb

2001 CDFA

Centaurea jacea ssp. jacea Brown knapweed

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

Centaurea jacea ssp. nigra Black knapweed

non-native
Perennial herb

2005 Louis-M. Landry

2009 Phil Pullen

Centaurea nigrescens Tyrol knapweed

non-native
Perennial herb

2007 Keir Morse

Centaurium pulchellum Branched centaury

non-native
Annual herb

2007 Luigi Rignanese

2008 Louis-M. Landry

Cerastium tomentosum Snow in summer

non-native
Perennial herb

2005 Louis-M. Landry

Cevallia sinuata Stinging serpent

non-native
Perennial herb

2017 Wynn Anderson

2019 Richard Spellenberg

2017 Wynn Anderson

Chaenactis carphoclinia var. peirsonii Peirson's pincushion

• rare native
Annual herb

2016 Fred Melgert

Chaenactis parishii Parish's chaenactis

• rare native
Perennial herb

2015 Keir Morse

Chamaemelum fuscatum Dusky dog fennel, Dusky dogfennel

non-native
Annual herb

2020 Krissa Klein

Joanne Dean-Freemire, Mary Ann Hannon, Kevin Hintsa, Ron Lindeman, Helen Hancock

2015 Richard Spellenberg

Chamaemelum nobile Roman chamomile, Russian chamomile

non-native
Perennial herb

2023 DPW Staff

2008 Zoya Akulova

Chenopodium capitatum Blite goosefoot, Strawberry blite

non-native
Annual herb

2009 Barry Breckling

2010 Louis-M. Landry

2013 Ron Wolf

Chenopodium capitatum var. capitatum Strawberry blite

native
Annual herb

2010 Louis-M. Landry

Chenopodium capitatum var. parvicapitatum Strawberry blite

non-native
Annual herb

Chenopodium capitatum var. parvicapitatum

2014 Trent M. Draper

Chenopodium desiccatum Aridland goosefoot, Dry goosefoot

native
Annual herb

2003 Keir Morse

Chenopodium nevadense Nevada goosefoot

native
Annual herb

2015 Steve Matson

2012 Lynn Robertson

Chenopodium nitens Shiny seed goosefoot

native
Annual herb

2019 Ryan O'Dell

2019 Amelia Ryan

Chenopodium opulifolium Seaport goosefoot, White goosefoot

non-native
Annual herb

2006 Luigi Rignanese

Chenopodium simplex Large seeded goosefoot, Mapleleaf goosefoot

• rare native
Annual herb

2006 Louis-M. Landry

2016 Keir Morse

2005 Larry Blakely

Chloracantha spinosa var. spinosa Spiny goldenbush

native
Perennial herb

2014 Keir Morse

Chloris gayana Rhodes grass

non-native
Perennial grass

2005 Steve Matson

Chloris truncata Australian fingergrass, Truncate finger grass

non-native
Perennial grass

2001 CDFA

Chloris virgata Feather finger grass, Feather fingergrass

non-native
Annual grass

2005 Steve Matson

Charles Webber 1998 California Academy of Sciences

Chlorogalum pomeridianum var. minus Dwarf soaproot, Wavyleaf soap plant

• rare native
Perennial herb (bulb)

1997 Dean Wm. Taylor

2011 Dean Wm. Taylor, Ph.D.

Chloropyron tecopense Tecopa bird's-beak

• rare native
Annual herb

2015 John Doyen

2011 Duncan S. Bell

Chorisia speciosa Silk floss tree

non-native
Tree

BOMBACACEAE

2006 Charles E. Jones

2014 Neal Kramer

2012 Dean Wm. Taylor

Chorizanthe blakleyi Blakley's spineflower

• rare native
Annual herb

2014 Chris Winchel

Donald Myrick1999 California Academy of Sciences

2014 Chris Winchell

Chorizanthe eastwoodiae Eastwood's spineflower

native
Annual herb

2017 Keir Morse

Chorizanthe fimbriata var. laciniata Lace fringed spineflower

native
Annual herb

2005 Aaron Schusteff

2014 Keir Morse

Chorizanthe parryi var. fernandina San fernando valley spineflower

• rare native
Annual herb

2008 Anuja Parikh and Nathan Gale

2001 Kevin Merk

2015 Anuja Parikh and Nathan Gale

Chorizanthe rectispina Prickly spineflower, Straight awned spineflower

• rare native
Annual herb

1982 California Native Plant Society

2013 Chris Winchell

2023 Ryan O'Dell

Chorizanthe ventricosa Priest valley spineflower

• rare native
Annual herb

2014 Neal Kramer

2023 Ryan O'Dell

2014 Neal Kramer

Chrysothamnus depressus Long flowered rabbitbrush, Longflower rabbitbrush

native
Shrub

2010 Teague Embrey

2015 Richard Spellenberg

Chrysothamnus greenei Greene's rabbitbrush

• rare native
Shrub

2012 Lynn Robertson

2009 James M. Andre

Chrysothamnus humilis Truckee rabbitbrush

native
Shrub

1998 James B. Gratiot

2000 James B. Gratiot

Chrysothamnus viscidiflorus ssp. lanceolatus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. lanceolatus

2014 Richard Spellenberg

Chylismia arenaria Sand evening-primrose

• rare native
Annual, Perennial herb

2012 Keir Morse

Chylismia claviformis ssp. cruciformis Cruciform evening-primrose

• rare native
Annual, Perennial herb

2003 Yulan Tong

2010 Bill Harnach

Cicer arietinum Chick pea

non-native
Perennial herb

2006 Luigi Rignanese

2007 Luigi Rignanese

2008 Louis-M. Landry

Cirsium andrewsii Franciscan thistle

• rare native
Perennial herb

2011 Scott Cox

2011 Thomas Reyes

2013 Robert Sikora

Cirsium canescens Prairie thistle

non-native
Perennial herb

2010 Lee Dittmann

2008 Zoya Akulova

Cirsium ochrocentrum var. ochrocentrum Yellowspine thistle

non-native
Perennial herb

2016 Wynn Anderson

Cirsium remotifolium var. remotifolium Remote-leaved thistle

native
Perennial herb

2008 Keir Morse

Cirsium rhothophilum Surf thistle

• rare native
Perennial herb

2023 Morgan Stickrod

Cirsium scariosum var. loncholepis La graciosa thistle

• rare native
Perennial herb

2011 Chris Winchell

2012 Anuja Parikh and Nathan Gale

2011 Chris Winchell

Cirsium scariosum var. scariosum Elk thistle

native
Perennial herb

2011 Louis-M. Landry

2017 Barry Rice

2016 Richard Spellenberg

Cistus monspeliensis Montpelier cistus, Resinous rockrose

non-native
Shrub (stem succulent)

2010 Zoya Akulova

Citrullus colocynthis Colocynth

non-native
Annual herb

2009 Stefano Doglio

2015 Barry Breckling

Cladium californicum California sawgrass, Saw grass

• rare native
Perennial grasslike herb

2024 richard mcneill

2018 Matt Berger

Clarkia tembloriensis ssp. calientensis Vasek's clarkia

• rare native
Annual herb

2011 Neal Kramer

2006 Dean Wm. Taylor

2011 Neal Kramer

Claytonia cordifolia Heart leaf spring beauty, Heartleaf springbeauty

native
Perennial herb

2021 Dana York

Claytonia perfoliata ssp. mexicana Southern miner's lettuce

native
Annual herb

2021 John Rawlings

2014 David popp

2002 Dean Wm. Taylor

Clematis terniflora Japanese clematis, Sweet autumn clematis

non-native
Vine

1999 Nick Kurzenko

2012 Zoya Akulova

Gladys Lucille Smith1999 California Academy of Sciences

Peritoma jonesii Jones' bee plant

native
Annual herb

Peritoma platycarpa Golden bee plant

native
Annual herb

Clinopodium vulgare Wild basil

non-native
Perennial herb

2010 Louis-M. Landry

2016 Keir Morse

Clitoria ternatea Asian pigeonwings

non-native
Perennial herb, Vine

2010 Moorea Biocode

Cochlearia groenlandica Greenland cochlearia

• rare native
Annual herb

Dr. G Dallas and Margaret Hanna2008 California Academy of Sciences

Cochlearia officinalis Spoonwort

native
Annual herb

2014 Phil Pullen

Coix lacryma-jobi Job's tears

non-native
Perennial grass

2010 Dr. Mark S. Brunell

2010 Moorea Biocode

Collinsia antonina San antonio collinsia

• rare native
Annual herb

2013 Chris Winchell

Collinsia torreyi var. brevicarinata Torrey's blue eyed mary, Torrey's collinsia

native
Annual herb

2016 David popp

2001 Steven Thorsted

Colutea arborescens Bladder senna

non-native
Tree, Shrub

2003 Jennifer Forman

Conringia orientalis Hare's ear mustard

non-native
Annual herb

2011 Louis-M. Landry

Consolida ajacis Doubtful knight's spur

non-native
Annual herb

2006 Luigi Rignanese

Convolvulus althaeoides Hollyhock bindweed, Mallow bindweed

non-native
Perennial herb, Vine

2005 Luigi Rignanese

Convolvulus tricolor Dwarf morning glory

non-native
Annual herb, Vine

2000 Joseph Dougherty/ecology.org

2005 Louis-M. Landry

Cordylanthus capitatus Yakima bird's beak

• rare native
Annual herb (hemiparasitic)

2012 Aaron Schusteff

Cordylanthus parviflorus Purple bird's beak

• rare native
Annual herb (hemiparasitic)

2011 Keir Morse

Cordylanthus pringlei Pringle's bird's beak

native
Annual herb

2012 Jake Ruygt

Cordylanthus tenuis ssp. barbatus Fresno county bird's beak

• rare native
Annual herb (hemiparasitic)

2023 Mike Russler

Cordylanthus tenuis ssp. capillaris Pennell's bird's beak

• rare native
Annual herb (hemiparasitic)

2015 John Doyen

2009 Aaron Arthur

Coreopsis wrightii Rock tickseed, Wright's coreopsis

non-native
Annual herb

2007 Louis-M. Landry

Corethrogyne filaginifolia var. incana San diego sand aster, San diego sandaster

• rare native
Perennial herb

2017 Larry Sward

Cornus canadensis Bunch berry, Bunchberry

native
Perennial herb

CORNACEAE

2023 John Malpas

2018 Jonathan Lee

2001 William Maslach

Cornus florida Flowering dogwood

non-native
Shrub, Tree

CORNACEAE

2009 Zoya Akulova

2007 Matt Below

Coronilla valentina Mediterranean crownvetch

non-native
Shrub

2007 Luigi Rignanese

Cosmos bipinnatus Garden cosmos

non-native
Annual herb

2011 Nick Kurzenko

2004 Nick Kurzenko

2006 Nick Kurzenko

Cosmos sulphureus Sulphur cosmos

non-native
Annual herb

2005 Louis-M. Landry

2012 Richard Spellenberg

Cota tinctoria Golden marguerite

non-native
Perennial herb

2005 Louis-M. Landry

2007 Luigi Rignanese

Cotinus coggygria European smoketree

non-native
Tree, Shrub

ANACARDIACEAE

2009 Neal Kramer

2008 Louis-M. Landry

2007 Dr. Amadej Trnkoczy

Cotoneaster simonsii Simons' cotoneaster

non-native
Shrub

2006 Peter Zika

Crassula solieri Little pygmy weed, Smoothseed pygmyweed

native
Annual herb

Crepis modocensis ssp. modocensis Modoc hawksbeard

native
Perennial herb

2021 David popp

2018 John Doyen

Crepis modocensis ssp. subacaulis Modoc hawksbeard

native
Perennial herb

2021 John Doyen

Crepis monticola Mountain hawk's beard, Mountain hawksbeard

native
Perennial herb

2023 Alaine Arslan

2020 Alaine Arslan

Crepis occidentalis ssp. costata Largeflower hawksbeard

native
Perennial herb

2006 James M. Andre

Crepis occidentalis ssp. occidentalis Largeflower hawksbeard

native
Perennial herb

2013 Gary A. Monroe

Crepis occidentalis ssp. pumila Largeflower hawksbeard

native
Perennial herb

2015 Richard Spellenberg

Crepis rubra Red hawksbeard

non-native
Annual herb

2007 Luigi Rignanese

Crepis setosa Bristly hawksbeard, Rough hawksbeard

non-native
Annual herb

2012 Richard Spellenberg

1998 Dean Wm. Taylor

Crepis tectorum Narrowleaf hawksbeard

non-native
Annual herb

2010 Jeff Abbas

Crocanthemum greenei Island rush-rose

• rare native
Shrub

2023 Keir Morse

2017 Brian Bielfelt

Crupina vulgaris Bearded creeper, Common crupina

• invasive non-native
Annual herb

2023 Norm Macdonald

2012 Ramona Robison

2015 Daniel Lay

Cryptantha barbigera var. fergusoniae Palm springs cryptantha

native
Annual herb

2010 James M. Andre

2011 Michael Crouse

Cryptantha celosioides Cocks comb cat's eye

• rare native
Perennial herb

2010 Gerald D. Carr

Cryptantha clementina San Clemente Island dune cryptantha

native
Annual herb

2011 Dylan Neubauer

Cryptantha clokeyi Clokey's cryptantha, Prickly cryptantha

• rare native
Annual herb

2011 Cindy Hopkins

2011 Xeric Specialties

Cryptantha cycloptera Tucson cryptantha

native
Annual herb

2012 Keir Morse

Cryptantha decipiens Granel forget me not, Gravel cryptantha, Gravelbar cryptantha

native
Annual herb

2007 Neal Kramer

2016 Keir Morse

Cryptantha hooveri Hoover's cryptantha

• rare native
Annual herb

Cryptantha mariposae Mariposa cryptantha

• rare native
Annual herb

2010 Robin Kent

2011 Steve Matson

2013 Jean Pawek

Cryptantha milobakeri Milo baker's cryptantha

native
Annual herb

2012 Dana York

2023 Ryan O'Dell

Cryptantha muricata var. denticulata Prickly-nut cryptantha

native
Annual herb

2022 Mary Merriman

2010 Steve Matson

Cryptantha nemaclada Colusa cryptantha

native
Annual herb

2011 Steve Matson

Donald Myrick1999 California Academy of Sciences

Cryptantha sparsiflora Slender cryptantha

native
Annual herb

2011 Steve Matson

Cryptantha spiculifera Snake river cryptantha

native
Annual herb

2013 Mary Winter

Cryptantha spithamaea

• rare native
Annual herb

2007 Keir Morse

2007 California Native Plant Society

Cryptantha torreyana var. torreyana Torrey's cryptantha

native
Annual herb

2018 David popp

2018 Mary Merriman

2012 Jean Pawek

Cryptantha traskiae Trask's cryptantha

• rare native
Annual herb

2011 Neal Kramer

2011 Dylan Neubauer

2011 Neal Kramer

Cryptantha wigginsii Wiggins' cryptantha

• rare native
Annual herb

2015 Patrick McConnell

Cucumis melo Cantaloupe

non-native
Annual, Perennial herb

2007 George W. Hartwell

2007 Luigi Rignanese

2007 George W. Hartwell

Cucumis melo var. dudaim Dudaim melon

non-native
Annual, Perennial herb

2001 CDFA

Cucumis myriocarpus Gooseberry gourd, Paddy melon

non-native
Annual herb, Vine

2001 CDFA

Cucurbita ficifolia Figleaf gourd

non-native
Vine

2017 Zoya Akulova

Cuscuta brachycalyx San joaquin dodder

native
Annual herb, Vine (parasitic)

2008 Jorg Fleige

2008 Keir Morse

Cuscuta californica var. papillosa Chaparral dodder, Papillate dodder

native
Annual herb, Vine (parasitic)

2023 Keir Morse

Cuscuta indecora Big seed alfalfa dodder, Bigseed alfalfa dodder

native
Annual herb, Vine (parasitic)

2011 Sierra Pacific Industries

Cuscuta indecora var. indecora Big seed alfalfa dodder, Bigseed alfalfa dodder

native
Annual herb, Vine (parasitic)

2011 Sierra Pacific Industries

Cuscuta leptantha Slender dodder

non-native
Annual herb, Vine (parasitic)

2008 Neal Kramer

Cuscuta pentagona Five angled dodder, Fiveangled dodder, Western field dodder

native
Annual herb, Vine (parasitic)

2016 Keir Morse

Cuscuta reflexa Giant dodder

non-native
Annual herb

2001 CDFA

Cuscuta suksdorfii Mountain dodder

native
Annual herb, Vine (parasitic)

2010 Dean Wm. Taylor, Ph.D.

2012 Barry Rice

Cycladenia humilis var. venusta Sacramento waxydogbane, Showy cycladenia

native
Perennial herb

2012 Don Davis

2004 Aaron Schusteff

2012 Don Davis

Cycloloma atriplicifolium Winged pigweed

non-native
Annual herb

2006 Dean Wm. Taylor, Ph.D.

2005 James M. Andre

Cylindropuntia californica var. californica California pricklypear, Snake cholla

• rare native
Perennial herb (stem succulent)

Cylindropuntia californica var. californica

2009 Andrew Borcher

2013 Dale Ritenour

2010 Anna Bennett

Cynosurus cristatus Crested dogstail grass, Crested dogtail grass

non-native
Perennial grass

2010 Zoya Akulova

2016 Zoya Akulova

Cyperus acuminatus Short pointed cyperus, Tapertip flatsedge

native
Annual grasslike herb

2003 Steve Matson

Cyperus fuscus Brown flatsedge

non-native
Annual grasslike herb

2007 Dr. Amadej Trnkoczy

Cyperus iria Ricefield flatsedge

non-native
Annual grasslike herb

2003 Steve Matson

Cyperus laevigatus Smooth cyperus, Smooth flatsedge

native
Perennial grasslike herb

2019 Alexander Randolph-Lowe

2019 Belinda Lo

Cyperus parishii Parish's flatsedge

native
Perennial grasslike herb

2009 Gary A. Monroe

Cypripedium parviflorum Lesser yellow lady's slipper

native
Perennial herb (rhizomatous)

2016 Adrienne Simmons

2012 Gary A. Monroe

Cypripedium parviflorum var. makasin Greater yellow lady's slipper

• rare native
Perennial herb (rhizomatous)

2012 Gary A. Monroe

Cytisus proliferus Tree lucerne

• invasive non-native
Shrub

2010 Justin M. Wood

Dactyloctenium aegyptium Crows foot grass, Egyptian grass

non-native
Annual, Perennial grass

2014 Neal Kramer

2004 Debra Valov

Dalea greggii Gregg's prairie clover

non-native
Perennial herb

2017 Richard Spellenberg

Dalea ornata Blue mountain prairie clover, Ornate dalea

• rare native
Perennial herb

1990 Gary A. Monroe

1985 Gary A. Monroe

Deinandra arida Red rock tarplant

• rare native
Annual herb

2011 Keir Morse

2023 Aidan Marshall

2011 Keir Morse

Deinandra conjugens Otay tarplant

• rare native
Annual herb

2001 Coralie Cobb

2010 Anna Bennett

Deinandra floribunda Tecate tarplant

• rare native
Annual herb

2023 Jim Merzbacher

2010 Andrew Borcher

Deinandra halliana Hall's tarplant

• rare native
Annual herb

2023 R.A. Chasey

Deinandra increscens ssp. increscens Grassland tarweed

native
Annual herb

2011 George Williams

2003 Lynn Watson

Deinandra pentactis Salinas river tarweed

native
Annual herb

2015 Richard Spellenberg

2023 Ryan O'Dell

Delphinium gypsophilum ssp. parviflorum Pinoche creek larkspur, Small flowered gypsum loving larkspur

• rare native
Perennial herb

Beatrice F. Howitt1999 California Academy of Sciences

2005 Christopher L. Christie (Delphinium gypsophilum)

Delphinium parryi ssp. eastwoodiae Eastwood's larkspur

• rare native
Perennial herb

2023 Mike Russler

Delphinium parryi ssp. maritimum Seaside larkspur

native
Perennial herb

2014 Steve Matson

Delphinium parryi ssp. purpureum Mt. pinos larkspur, San bernardino larkspur

• rare native
Perennial herb

2018 Douglas Gordon-Blackwood

2008 Dr. Lloyd G. Simpson

Delphinium patens ssp. montanum Spreading larkspur, Zigzag larkspur

native
Perennial herb

2003 Christopher L. Christie

2003 Yulan Tong

2003 Christopher L. Christie

Delphinium recurvatum Byron larkspur, Recurved larkspur

• rare native
Perennial herb

2023 Christopher Collier

2019 Diane Etchison

2023 Christopher Collier

Delphinium scaposum Tall mountain larkspur

• rare native
Perennial herb

2010 Lee Dittmann

2012 James M. Andre

Delphinium stachydeum Spiked larkspur

• rare native
Perennial herb

2009 F. Gauna

Delphinium trolliifolium Columbian larkspur, Cow poison

native
Perennial herb

2023 Dennis ONeill

2010 Aaron Arthur

2005 Jerry Murray

Delphinium variegatum ssp. kinkiense Royal larkspur, San clemente island larkspur

• rare native
Perennial herb

2011 Dylan Neubauer

Delphinium variegatum ssp. thornei Thorne's royal larkspur

• rare native
Perennial herb

2008 Kim M. Klementowski

Dendromecon harfordii var. harfordii Channel island tree poppy

• rare native
Shrub

2018 Susan McDougall

Dendromecon harfordii var. rhamnoides Island tree poppy, Tree poppy

• rare native
Shrub

1993 Dean Wm. Taylor

Descurainia incisa ssp. incisa Mountain tansy mustard

native
Annual, Biennial herb

2018 Susan McDougall

Dianthus deltoides Meadow pink

non-native
Perennial herb

2005 Louis-M. Landry

2016 John Doyen

2017 Barry Rice

Dianthus plumarius Feathered pink

non-native
Perennial herb

2007 Louis-M. Landry

Dichondra micrantha Asian ponysfoot

non-native
Perennial herb

2023 Ron Vanderhoff

2012 Dean Wm. Taylor, Ph.D.

Didymodon norrisii Norris' beard moss

native
Moss

2013 Scot Loring

Dieteria asteroides Hoary aster

native
Perennial herb

2016 Keir Morse

Dieteria asteroides var. asteroides Hoary aster

native
Perennial herb

2013 Richard Spellenberg

2014 John Doyen

Dieteria asteroides var. lagunensis Mount laguna aster

• rare native
Perennial herb

2016 Keir Morse

Dieteria canescens var. ziegleri Ziegler's aster

• rare native
Perennial herb

2006 J. Zylstra, SBNF

Digitaria californica Arizona cottontop

native
Perennial grass

2011 Keir Morse

Digitaria californica var. californica Arizona cottontop

• rare native
Perennial grass

2011 Keir Morse

Digitaria ischaemum Smooth crabgrass

non-native
Annual grass

2006 Dean Wm. Taylor, Ph.D.

2006 Steve Matson

Diodia teres Poorjoe, Rough buttonweed

native
Annual herb

2016 Keir Morse

Diospyros virginiana Common persimmon

non-native
Tree

EBENACEAE

Jo-Ann Ordano2004 California Academy of Sciences

2016 Zoya Akulova

Diplacus aridus Low bush monkeyflower

• rare native
Shrub

2012 Duncan S. Bell

Diplotaxis erucoides White wallrocket

non-native
Perennial herb

2005 Luigi Rignanese

Dipterostemon capitatus ssp. lacuna-vernalis Vernal pool blue dicks

native
Perennial herb

Dipterostemon capitatus ssp. lacuna-vernalis

2022 Paul Natoma

2023 Katie O'Hara-Kelly

2022 Paul Natoma

Dipterostemon capitatus ssp. pauciflorus Few flowered blue dicks

native

Dipterostemon capitatus ssp. pauciflorus

2023 richard mcneill

2014 Mary Merriman

2019 John Doyen

Ditaxis claryana Glandular ditaxis

• rare native
Perennial herb

2012 Keir Morse

Ditaxis serrata var. californica California ditaxis

• rare native
Perennial herb

2012 Keir Morse

Downingia bicornuta var. picta Doublehorn calicoflower, Mountain bristled downingia

native
Annual herb

2015 John Doyen

2004 Carol W. Witham

Downingia elegans Elegant calicoflower, Elegant downingia

native
Annual herb

2018 John Doyen

2023 Emily R. Allen

Downingia laeta Great basin calicoflower, Great basin downingia

• rare native
Annual herb

2010 James M. Andre

2012 Jean Pawek

2018 John Doyen

Draba cana Canescent draba

• rare native
Perennial herb

2004 Steve Matson

Draba monoensis Mono draba, White mtns. draba

• rare native
Perennial herb

2004 Steve Matson

Draba nemorosa Woodland draba

non-native
Annual herb

2014 Trent M. Draper

2004 Steve Matson

2014 Trent M. Draper

Draba paysonii Payson's draba

native
Perennial herb

1993 Gary A. Monroe

2004 Steve Matson

Draba sharsmithii Mt. whitney draba, Sharsmith's draba

• rare native
Perennial herb

2004 Steve Matson

Draba sierrae Sierra draba

• rare native
Perennial herb

2014 Joy England

Draba subumbellata Mound draba, Parasol draba

• rare native
Perennial herb

1987 Dean Wm. Taylor

2004 Steve Matson

Drosera aliciae Australian sundew

non-native
Perennial herb

2006 Barry Rice

2010 Barry Rice

Drosera capensis Cape sundew

non-native
Perennial herb

2009 Barry Rice

2017 Barry Rice

2006 Barry Rice

Drosera filiformis Threadleaf sundew

non-native
Perennial herb (carnivorous)

Frithjof Holmboe 2001 California Academy of Sciences

2005 Joseph Dougherty/ecology.org

Drosera tracyi Tracy's sundew

non-native
Perennial herb

2010 Barry Rice

Drymocallis hansenii Yosemite woodbeauty

native
Perennial herb

2009 Barry Breckling

Dryopteris filix-mas Male fern

• rare native
Fern (rhizomatous)

DRYOPTERIDACEAE

2010 Louis-M. Landry

2006 Louis-M. Landry

2010 Louis-M. Landry

Dudleya abramsii ssp. bettinae San Luis Obispo serpentine dudleya

• rare native
Perennial herb

2012 Terrence Gosliner

2023 Kyle Suchy

2011 Chris Winchell

Dudleya alainae Banner dudleya

• rare native
Perennial herb

2009 Vince Scheidt

2006 Chris Wagner, SBNF

2009 Keir Morse

Dudleya anomala

non-native
Perennial herb

2014 Zoya Akulova

2018 Zoya Akulova

Dudleya attenuata Tapertip liveforever

native
Perennial herb

2006 Vince Scheidt

2006 Steve Matson

2009 Robert Steers

Dudleya attenuata ssp. attenuata Orcutt's dudleya

• rare native
Perennial herb

2006 Vince Scheidt

2006 Steve Matson

Dudleya attenuata ssp. orcuttii Orcutt's dudleya, Orcutt's liveforever

native
Perennial herb

2006 Vince Scheidt

Dudleya blochmaniae ssp. insularis Blochman's liveforever, Santa rosa island dudleya, Santa rosa island live forever

• rare native
Perennial herb

2000 John Game

Dudleya cymosa ssp. crebrifolia San gabriel river dudleya

• rare native
Perennial herb

2015 Gabi McLean

Dudleya gnoma Munchkin liveforever

• rare native
Perennial herb

2000 John Game

2005 Dieter Wilken

Dudleya traskiae Santa barbara island dudleya, Santa barbara island live forever, Santa barbara island liveforever

• rare native
Perennial herb

2014 Robert Sikora

1985 California Native Plant Society

2014 Robert Sikora

Dudleya virens ssp. hassei Bright green dudleya

• rare native
Perennial herb

2006 Steve Matson

2013 Susan McDougall

2009 Zoya Akulova

Duranta erecta Golden dewdrops

non-native
Shrub, Tree

2010 Moorea Biocode

Dysphania multifida Cut leaved goosefoot

non-native
Annual, Perennial herb

2017 James Bailey

2023 Maria Alvarez

Dyssodia papposa Fetid marigold

non-native
Annual herb

2013 Justy Leppert

2015 Richard Spellenberg

Ebenopsis ebano Texas ebony

non-native
Tree, Shrub

2015 Wynn Anderson

Echinocereus engelmannii var. acicularis Engelmann's hedgehog cactus

native
Shrub (stem succulent)

Echinocereus engelmannii var. acicularis

Echinocereus engelmannii var. howei Howe's hedgehog cactus

• rare native
Shrub (stem succulent)

1989 Wolfgang Blum

Echinochloa crus-pavonis Gulf cockspur grass

non-native
Annual grass

2006 Steve Matson

Echinochloa muricata Rough barnyard grass, Rough barnyardgrass

non-native
Annual grass

2020 Robert L. Carr

Echinops sphaerocephalus Globe thistle, Great globethistle

non-native
Perennial herb

2008 Zoya Akulova

Echium vulgare Common viper's bugloss

non-native
Shrub

2019 LJ Moore-McClelland

2005 Louis-M. Landry

Elatine brachysperma Short seed waterwort, Shortseed waterwort

native
Annual, Perennial herb

ELATINACEAE

2023 Ron Vanderhoff

Elatine californica California waterwort

native
Annual, Perennial herb

ELATINACEAE

2023 Keir Morse

Mary Ann Hannon

2015 Vernon Smith

Elatine chilensis Chilean waterwort

native
Annual, Perennial herb (aquatic)

ELATINACEAE

2012 Keir Morse

Eleocharis acicularis var. gracilescens Needle spike rush

native
Perennial grasslike herb

2003 Steve Matson

Eleocharis atropurpurea Purple spikerush

native
Annual grasslike herb

2003 Steve Matson

Eleocharis bernardina Fewflower spikerush

native
Perennial grasslike herb

2007 Steve Matson

Eleocharis bolanderi Bolander's spikerush

native
Perennial grasslike herb

2003 Steve Matson

Eleocharis engelmannii Engelmann's spikerush

native
Annual grasslike herb

2023 David popp

2003 Steve Matson

Eleocharis engelmannii var. engelmannii Engelmann's spikerush

native
Annual grasslike herb

2023 David popp

2013 Jake Ruygt

Eleocharis flavescens Yellow spikerush

native
Annual grasslike herb

2004 Steve Matson

Eleocharis flavescens var. flavescens Yellow spikerush

native
Annual grasslike herb

2004 Steve Matson

Eleocharis geniculata Bent spikerush, Canada spikesedge

native
Annual grasslike herb

2019 Belinda Lo

Eleocharis obtusa Blunt spike rush, Blunt spikerush, Broad spiked spikerush

native
Annual grasslike herb

2008 Louis-M. Landry

Eleocharis pachycarpa Black sand spikerush, Broad fruit spikerush

non-native
Perennial grasslike herb

2003 Steve Matson

Eleusine tristachya Three spiked goosegrass, Threespike goosegrass

non-native
Annual grass

2023 Donald Burk

Elymus canadensis Canada wild rye, Canada wildrye

non-native
Perennial grass

2006 Louis-M. Landry

2008 Louis-M. Landry

Elymus elymoides ssp. hordeoides Barley squirreltail

native
Perennial grass

2007 Steve Matson

Elymus elymoides var. hordeoides Barley squirreltail

native
Perennial grass

2007 Steve Matson

Elymus smithii Western wheat grass

native
Perennial grass

2008 Zoya Akulova

2008 Sean B. Smith

Emilia fosbergii Florida tasselflower

non-native
Annual herb

2010 Moorea Biocode

Emilia sonchifolia Lilac tasselflower

non-native
Annual herb

2012 Zoya Akulova

Empetrum nigrum Black crowberry

• rare native
Shrub

2013 Dana York

Encelia virginensis Encelia, Virgin river brittlebush, Virgin river encelia

native
Shrub

2007 Jason E. Willand

2005 James M. Andre

2007 Jason E. Willand

Enceliopsis nudicaulis var. corrugata Nakedstem sunray

• rare native
Perennial herb, Shrub

2004 Dana York

Enneapogon desvauxii Nine awned pappus grass, Nineawn pappusgrass

• rare native
Perennial grass

2011 Keir Morse

Ephedra torreyana Torrey's jointfir

• rare native
Shrub

EPHEDRACEAE

2019 Belinda Lo

Epilobium canum ssp. angustifolium Hummingbird trumpet

native
Perennial herb

2009 Juergen Schrenk

2012 Faerthen Felix

Epilobium canum ssp. garrettii Garrett's california fuchsia

native
Perennial herb

2009 Gary A. Monroe

Epilobium cleistogamum Cleistogamous boisduvalia, Selfing willowherb

native
Annual herb

2007 Neal Kramer

2015 Neal Kramer

2004 Carol W. Witham

Epilobium glaberrimum ssp. fastigiatum Cluster stemmed willowherb, Glaucus willowherb, Smooth willowherb

native
Perennial herb

2010 Keir Morse

Epilobium lactiflorum Milkflower willowherb, White flowered willowherb

native
Perennial herb

2009 Barry Breckling

2016 Sierra Pacific Industries

2009 Barry Breckling

Epilobium leptophyllum Bog willowherb, Slender leaved willowherb

non-native
Perennial herb

2011 Louis-M. Landry

Epilobium nivium Snow mountain willowherb, Snow mtn. willowherb

• rare native
Perennial herb

2011 Ryan Elliott

2018 Japhia Huhndorf

2011 Ryan Elliott

Epipterygium tozeri Tozer's epipterygium moss

native
Moss

2016 John Game

2021 Diana Wahl

Equisetum palustre Marsh horsetail

• rare native
Fern (rhizomatous)

EQUISETACEAE

2007 Dr. Amadej Trnkoczy

University and Jepson Herbaria

Eragrostis barrelieri Mediterranean lovegrass

non-native
Annual grass

2007 Steve Matson

Eragrostis pectinacea var. pectinacea Tufted lovegrass

native
Annual grass

2007 Steve Matson

Eragrostis pilosa Indian lovegrass

non-native
Annual grass

2023 Donald Burk

Eragrostis pilosa var. pilosa Indian lovegrass

non-native
Annual grass

2023 Donald Burk

Erechtites hieraciifolia American burnweed

non-native
Annual, Perennial herb

2008 Louis-M. Landry

Eremogone aculeata Prickly sandwort

native
Perennial herb

2001 Jeff Abbas

2014 John Doyen

2017 John Doyen

Eremogone congesta var. congesta Capitate sandwort

native
Perennial herb

2011 Steve Matson

2017 David popp

Eremogone congesta var. simulans Capitate sandwort

native
Perennial herb

1995 Saint Mary's College of California

Eremogone ferrisiae

native
Perennial herb

2019 Jim Morefield

2023 richard mcneill

2023 Bob Steele

Eremogone macradenia var. arcuifolia Forest camp sandwort

native
Perennial herb

Eremothera boothii ssp. boothii Booth's evening-primrose

• rare native
Annual herb

2023 Cesar Garcia

2012 Keir Morse

Eriastrum luteum Yellow flowered eriastrum, Yellow woollystar

• rare native
Annual herb

2005 Aaron Schusteff

2011 Chris Winchell

Eriastrum pluriflorum ssp. albifaux Many flowered eriastrum

native
Annual herb

2012 Neal Kramer

2014 Keir Morse

Eriastrum pluriflorum ssp. sherman-hoytiae Mrs. Hoyt's woolly-star

native
Annual herb

Eriastrum pluriflorum ssp. sherman-hoytiae

2011 Aaron Schusteff

2018 John Doyen

Ericameria brachylepis Boundary goldenbush, Chaparral goldenbush

native
Shrub

2013 Keir Morse

Ericameria cuneata var. macrocephala Cliff goldenbush, Laguna mtns. goldenbush

• rare native
Shrub

2014 Keir Morse

Ericameria laricifolia Turpentine brush, Turpentine bush

native
Shrub

2004 James M. Andre

2005 James M. Andre

2010 Jean Pawek

Ericameria nauseosa var. ceruminosa Sharp bracted rabbitbrush

native
Shrub

2024 Manzanita Dictionary

Ericameria ophitidis Serpentine goldenbush, Serpentine macronema

• rare native
Shrub

2005 Dean Wm. Taylor

Shasta-Trinity National Forest

2017 Belinda Lo

Ericameria parryi var. monocephala Parry's rabbitbrush

native
Shrub

2015 Barry Breckling

2012 Steve Matson

2008 Gary A. Monroe

Erigeron annuus Annual fleabane, Eastern daisy fleabane

non-native
Annual herb

2005 Dr. Amadej Trnkoczy

2008 Jason E. Willand

Erigeron blochmaniae Blochman's erigeron, Blochman's leafy daisy

• rare native
Perennial herb (rhizomatous)

2003 Christopher L. Christie

2010 Chris Winchell

Erigeron bloomeri var. nudatus Scabland fleabane, Waldo daisy

• rare native
Perennial herb

2008 Norman Jensen

Erigeron breweri var. covillei Coville erigeron, Coville's erigeron, Coville's fleabane

native
Perennial herb

2019 David Greenberger

2018 Tom Chester

Erigeron breweri var. jacinteus Brewer's fleabane, San Jacinto Mountains daisy

• rare native
Perennial herb (rhizomatous)

2009 Neal Kramer

2017 Steve McWilliams

2009 Thomas Stoughton

Erigeron concinnus Navajo fleabane

native
Shrub (stem succulent)

2004 James M. Andre

2010 Neal Kramer

Erigeron concinnus var. concinnus Navajo fleabane, Shaggy daisy, Tidy fleabane

native
Shrub (stem succulent)

2010 Neal Kramer

2016 John Doyen

2010 Neal Kramer

Erigeron eatonii var. nevadincola Eaton's fleabane, Nevada daisy

• rare native
Perennial herb

2017 John Doyen

2023 Alaine Arslan

2020 John Doyen

Erigeron eatonii var. sonnei Eaton's fleabane, Sonne's daisy

native
Perennial herb

2001 Gary A. Monroe

2010 Barry Breckling

Erigeron elmeri Elmer's erigeron

native
Perennial herb

2010 Dr. Dean Taylor

Erigeron flagellaris Trailing fleabane

native
Perennial herb

2013 Jean Pawek

Erigeron foliosus var. confinis Leafy fleabane

native
Perennial herb

2023 Dana York

2007 Keir Morse

Erigeron formosissimus Beautiful fleabane

non-native
Perennial herb

2004 Robert Sivinski

Erigeron inornatus var. calidipetris California rayless fleabane, Hot rock daisy

• rare native
Perennial herb

2011 Anthony Baniaga

2006 Dean Wm. Taylor

Erigeron maniopotamicus Mad river fleabane daisy

• rare native
Perennial herb

2007 Maria Hemenway

2007 Maria J. Boudreaux

Erigeron nivalis Northern daisy

• rare native
Perennial herb

2023 Dana York

Erigeron pumilus var. intermedius Shaggy fleabane

native
Perennial herb

1995 Saint Mary's College of California

1995 Saint Mary's College of California

2018 David popp

Erigeron supplex Supple daisy, Supple fleabane

• rare native
Perennial herb

2012 Asa Spade

2015 Aaron Arthur

2009 Halleh Paymard

Erigeron utahensis Utah fleabane

• rare native
Perennial herb

2015 Ron Wolf

2014 Ron Wolf

Eriochloa aristata Bearded cupgrass

native
Annual grass

2008 Steve Matson

Eriochloa aristata var. aristata Pointed cupgrass

native
Annual grass

2008 Steve Matson

Eriochloa contracta Dense cupgrass, Prairie cupgrass

non-native
Annual grass

2008 Steve Matson

Eriodictyon capitatum Lompoc yerba santa

• rare native
Shrub

Roxanne Bittman and CNPS

2013 Anuja Parikh and Nathan Gale

Eriodictyon trichocalyx var. lanatum Hairy yerba santa

native
Shrub

2012 Keir Morse

Eriogonum apiculatum San Jacinto buckwheat

native
Annual herb

2012 Keir Morse

Eriogonum apricum var. prostratum Irish hill buckwheat

• rare native
Perennial herb

2001 George W. Hartwell

2009 George W. Hartwell

Eriogonum argillosum Clay buckwheat, Clay loving buckwheat

• rare native
Annual herb

2023 Matt Berger

Eriogonum bifurcatum Forked buckwheat, Pahrump valley buckwheat

• rare native
Annual herb

2010 Steve Matson

Eriogonum breedlovei var. shevockii Needle's buckwheat, The needles buckwheat

• rare native
Perennial herb

2023 Aidan Marshall

Eriogonum cithariforme var. agninum Cithara buckwheat

native
Annual herb

2009 Adonis (Don) Tate

Eriogonum collinum Hill buckwheat

• rare native
Annual herb

2010 Steve Matson

Eriogonum deflexum var. nevadense Flat topped buckwheat, Nevada buckwheat

native
Annual herb

2013 Barry Breckling

2010 Gary A. Monroe

2013 Barry Breckling

Eriogonum elatum var. villosum Long hairy tall buckwheat, Tall woolly buckwheat

native
Perennial herb

2010 Steve Matson

2023 R.A. Chasey

2010 Steve Matson

Eriogonum evanidum Vanishing wild buckwheat

• rare native
Annual herb

2009 Duncan S. Bell

2008 Naomi Fraga

Eriogonum giganteum var. compactum Santa barbara island buckwheat

• rare native
Shrub

2010 Steve Matson

Eriogonum giganteum var. formosum San clemente island buckwheat

• rare native
Shrub

2011 Dylan Neubauer

Eriogonum grande var. timorum San nicolas island buckwheat

• rare native
Perennial herb

2011 Vince Scheidt

2009 Vince Scheidt

Eriogonum heermannii var. heermannii Heermann's buckwheat

native
Shrub

2015 Keir Morse

Eriogonum heracleoides var. heracleoides Parsnip flowered buckwheat, Parsnipflower buckwheat

• rare native
Perennial herb

Eriogonum heracleoides var. heracleoides

2009 Steven Perry

Eriogonum hirtellum Klamath mountain buckwheat, Klamath mtn. buckwheat

• rare native
Perennial herb (rhizomatous)

2009 Zoya Akulova

2010 Steve Matson

Eriogonum hookeri Hooker's buckwheat

native
Annual herb

2023 Steve Matson

Eriogonum kelloggii Kellogg's buckwheat, Red mountain buckwheat

• rare native
Perennial herb

2008 Kaylea Eickhoff

2010 Steve Matson

2008 Kaylea Eickhoff

Eriogonum marifolium var. cupulatum Marum leaved buckwheat

native
Shrub

2012 Dean Wm. Taylor, Ph.D.

2013 Sierra Pacific Industries

Eriogonum microtheca var. alpinum Northern limestone buckwheat

native
Perennial herb

2010 Steve Matson

2016 John Doyen

Eriogonum microthecum var. alpinum Alpine slender buckwheat

• rare native
Shrub

2012 Barry Breckling

2016 John Doyen

Eriogonum microthecum var. corymbosoides San bernardino buckwheat

native
Shrub

Eriogonum microthecum var. corymbosoides

2009 Thomas Stoughton

2008 Thomas Stoughton

Eriogonum microthecum var. johnstonii Johnston's buckwheat

• rare native
Shrub

2024 Manzanita Dictionary

2010 Steve Matson

Eriogonum microthecum var. schoolcraftii Schoolcraft's wild buckwheat

• rare native
Shrub

Eriogonum microthecum var. schoolcraftii

2020 Teague Embrey

Eriogonum molestum Pineland buckwheat

native
Annual herb

2006 Michael Charters

Eriogonum nudum var. paralinum Del norte buckwheat

• rare native
Perennial herb

2010 Steve Matson

Eriogonum nudum var. regirivum Kings river buckwheat

• rare native
Perennial herb

2007 Chris Winchell

Eriogonum nutans Dugway buckwheat

native
Annual herb

2012 Steve Matson

2010 Steve Matson

Eriogonum nutans var. nutans Dugway buckwheat, Nodding buckwheat

• rare native
Annual herb

2012 Steve Matson

Eriogonum ochrocephalum White woolly buckwheat, Whitewoolly buckwheat

native
Perennial herb

2010 Steve Matson

2012 Gary A. Monroe

2010 Steve Matson

Eriogonum ochrocephalum var. ochrocephalum White woolly buckwheat, Whitewoolly buckwheat

• rare native
Perennial herb

Eriogonum ochrocephalum var. ochrocephalum

2010 Steve Matson

Eriogonum ordii Fort mojave buckwheat

native
Annual herb

2023 Matt Berger

Eriogonum ovalifolium var. depressum Cushion buckwheat

• rare native
Perennial herb

2020 California Department of Fish and Wildlife

Eriogonum ovalifolium var. monarchense Monarch buckwheat

• rare native
Perennial herb

1996 Dana York

Eriogonum ovalifolium var. ovalifolium Cushion buckwheat

native
Perennial herb

2017 Tim Messick

2005 Steve Matson

Eriogonum pendulum Waldo buckwheat

• rare native
Perennial herb

2009 Norman Jensen

2008 Keir Morse

Eriogonum prattenianum var. avium Kettle dome buckwheat, Nevada city buckwheat

• rare native
Perennial herb

2010 Steve Matson

Eriogonum prociduum Prostrate buckwheat

• rare native
Perennial herb

2010 Steve Matson

2001 John Game

Eriogonum pyrolifolium var. coryphaeum Shasta buckwheat

native
Perennial herb, Shrub

2006 Keir Morse

Eriogonum sphaerocephalum var. sphaerocephalum Rock buckwheat, Round headed buckwheat

native
Perennial herb

Eriogonum sphaerocephalum var. sphaerocephalum

2010 Steve Matson

2014 John Doyen

Eriogonum temblorense Temblor buckwheat

• rare native
Annual herb

2023 Matt Berger

Eriogonum thornei Thorne's buckwheat

• rare native
Perennial herb

2005 James M. Andre

2008 Hartmut Wisch

2005 James M. Andre

Eriogonum umbellatum var. chlorothamnus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2012 Gary A. Monroe

1981 Dean Wm. Taylor

Eriogonum umbellatum var. glaberrimum Green buckwheat

• rare native
Perennial herb

2007 F. Gauna

Eriogonum umbellatum var. goodmanii Goodman's buckwheat, Serpentine sulphur buckwheat

native
Perennial herb

2015 Dana York

Eriogonum umbellatum var. lautum Scott valley buckwheat

• rare native
Perennial herb

2007 Dean Wm. Taylor, Ph.D.

Eriogonum umbellatum var. minus Alpine sulfur flowered buckwheat, Alpine sulphur flower buckwheat

• rare native
Perennial herb

2015 Keir Morse

2023 Keir Morse

2015 Keir Morse

Eriogonum wrightii var. membranaceum Bastardsage, Wright s buckwheat, Wright's buckwheat

native
Perennial herb, Shrub

2012 Keir Morse

Eriogonum wrightii var. wrightii Bastardsage, Wright's buckwheat

native
Perennial herb, Shrub

2012 Trent M. Draper

2005 James M. Andre

2012 Trent M. Draper

Eriophyllum confertiflorum var. tanacetiflorum Golden yarrow, Tansy yarrow

• rare native
Shrub

Eriophyllum confertiflorum var. tanacetiflorum

2009 Dean Wm. Taylor, Ph.D.

2012 Lynn Robertson

2009 Dean Wm. Taylor, Ph.D.

Eriophyllum congdonii Congdon's eriophyllum, Congdon's woolly sunflower

• rare native
Annual herb

2009 Barry Breckling

2007 Aaron Schusteff

Eriophyllum lanatum var. aphanactis Common woolly sunflower

native
Perennial herb

2021 Steve Laymon

2023 Ryan O'Dell

Eriophyllum lanatum var. obovatum Common woolly sunflower, Southern sierra woolly sunflower

• rare native
Perennial herb

2023 Diane Etchison

2023 Mike Russler

Eriophyllum nubigenum Yosemite eriophyllum, Yosemite woolly sunflower

• rare native
Annual herb

2009 Barry Breckling

Erodium cygnorum Australian filaree, Australian stork's bill

non-native
Annual herb

Eruca vesicaria Rocketsalad

non-native
Annual, Biennial herb

2010 Barry Breckling

2013 Neal Kramer

2010 James M. Andre

Eruca vesicaria ssp. sativa Garden rocket, Rocketsalad

non-native
Annual, Biennial herb

2010 James M. Andre

2014 John Doyen

2013 Neal Kramer

Erucastrum gallicum Common dogmustard

non-native
Annual herb

2007 Dr. Amadej Trnkoczy

Eryngium aristulatum var. hooveri Hoover's button celery, Hoover's eryngo

• rare native
Annual, Perennial herb

2011 Aaron Arthur

2014 Maya Goklany

2010 Chris Winchell

Eryngium mathiasiae Mathias' button celery, Mathias' eryngo

native
Perennial herb

2016 John Doyen

2000 Robert E. Preston, Ph.D.

2016 John Doyen

Eryngium pinnatisectum Tuolumne button celery, Tuolumne eryngo

• rare native
Annual, Perennial herb

2007 Robert E. Preston, Ph.D.

Eryngium racemosum Delta button celery, Delta eryngo

• rare native
Annual, Perennial herb

2020 Zoya Akulova

2010 Chris Winchell

2020 Zoya Akulova

Eryngium vaseyi var. vallicola Coyote thistle

native
Perennial herb

2021 David Greenberger

2021 Barry Rice

Eryngium vaseyi var. vaseyi Coyote thistle

native
Perennial herb

Erysimum capitatum var. angustatum Contra costa wallflower

• rare native
Perennial herb

2024 Randy Huey

2022 Dianne Lake

2018 Molly Ferrell

Erysimum capitatum var. lompocense San luis obispo wallflower

• rare native
Perennial herb

Donald Myrick 1999 California Academy of Sciences

2006 Adonis (Don) Tate

Erysimum cheiranthoides Wormseed mustard, Wormseed wallflower

non-native
Annual herb

2006 Louis-M. Landry

2023 Aracely Lara

2007 Louis-M. Landry

Erysimum cheiri Aegean wallflower, Common wallflower

non-native
Perennial herb

2008 Louis-M. Landry

2007 Louis-M. Landry

2008 Louis-M. Landry

Erythranthe arenaria

native
Annual herb

2021 Duncan Bell

Erythranthe arenicola

native
Annual herb

Erythranthe arvensis

native
Annual herb

2023 Alaine Arslan

2022 Emily R. Allen

2023 Alaine Arslan

Erythranthe breviflora Short flowered monkeyflower

native
Annual herb

2016 John Doyen

2001 Steve Schoenig

2011 Ryan Batten

Erythranthe corallina

native
perennial

2022 Martin Purdy

Erythranthe cordata

native
Annual herb

2019 John Doyen

Erythranthe discolor

native
Annual herb

2022 Naomi Fraga

2023 Mary Merriman

2022 Mike Russler

Erythranthe exigua San Bernardino Mountains monkeyflower

• rare native
Annual herb

2001 Steve Schoenig

2008 Naomi Fraga

2001 Steve Schoenig

Erythranthe grayi Gray's monkeyflower

• rare native
Annual herb

Erythranthe hardhamiae Santa lucia monkeyflower

• rare native
Annual herb

2013 Laura Ann Eliassen

2014 Dylan Neubauer

Erythranthe pardalis Pennell's panther

native
Perennial herb

2024 Mike Russler

Erythranthe purpurea little purple monkeyflower

• rare native
Annual herb

2023 Ryan O'Dell

Erythranthe utahensis Utah monkeyflower

• rare native
Perennial herb

Erythronium citrinum var. roderickii Lemon colored fawn lily, Roderick's fawnlily

• rare native
Perennial herb (bulb)

2022 Christopher Collier

2018 Sierra Pacific Industries

2022 Christopher Collier

Erythronium howellii Howell's fawn lily, Howell's fawnlily

• rare native
Perennial herb (bulb)

2023 Dana York

Erythronium taylorii Taylor's fawnlily

• rare native
Perennial herb (bulb)

2018 Robert Barnard

2004 John Game

2010 Barry Breckling

Eschscholzia californica ssp. mexicana Desert california poppy

native
Annual, Perennial herb

2010 James M. Andre

2006 Chris Wagner, SBNF

2010 James M. Andre

Eschscholzia minutiflora ssp. minutiflora Pygmy poppy

native
Annual herb

Eschscholzia minutiflora ssp. minutiflora

2019 Jim Morefield

2024 Olesya Konovalova

Eucalyptus calophylla Redgum

non-native
Tree

2018 Earth Team

Eucalyptus microtheca Coolabah

non-native
Tree

Eucalyptus pulchella

non-native
Tree

Eucalyptus rudis Western australian floodedgum

non-native
Tree

Eucalyptus tereticornis Forest red gum, Forest redgum

non-native
Tree

2024 David popp

Eucalyptus torquata Coral gum

non-native
Tree

2019 Dan Antonaccio

2018 Ron Vanderhoff

2015 Ron Vanderhoff

Eucalyptus viminalis Manna gum

non-native
Tree

Charles Webber1999 California Academy of Sciences

2020 Diana Wahl

Euchiton gymnocephalus Creeping cudweed

non-native
Perennial herb

2008 Zoya Akulova

2009 Zoya Akulova

2017 Zoya Akulova

Euchiton involucratus

non-native
Annual herb

Euchiton japonicus Father and child plant

non-native
Annual herb

2009 Zoya Akulova

Euchiton sphaericus Tropical creeping cudweed

non-native
Annual herb

2014 Richard Spellenberg

Euclidium syriacum Syrian mustard

non-native
Annual herb

2018 Trent M. Draper

Euonymus fortunei Winter creeper

non-native
Tree, Shrub

CELASTRACEAE

2006 Louis-M. Landry

Euphorbia abramsiana Abrams' spurge

• rare native
Annual herb

2012 Keir Morse

Euphorbia arizonica Arizona spurge

• rare native
Perennial herb

2013 Keir Morse

Euphorbia cyathophora Fire on the mountain

non-native
Annual, Perennial herb

2016 Barbara Boethling

2010 Moorea Biocode

Euphorbia davidii David's spurge

non-native
Perennial herb

2016 Keir Morse

Euphorbia dentata Toothed spurge

non-native
Annual herb

2001 CDFA

2007 Trent M. Draper

2017 Wynn Anderson

Euphorbia exstipulata Squareseed spurge

native
Annual herb

2011 Keir Morse

Euphorbia exstipulata var. exstipulata Clark Mountain spurge

• rare native
Annual herb

2011 Keir Morse

Euphorbia glyptosperma Ridge-seeded spurge

native
Annual herb

2009 Gerald Carr

2009 Robert Carr

Euphorbia heterophylla Mexican fireplant

non-native
Annual, Perennial herb

2010 Jeff Abbas

2017 John Doyen

Euphorbia hooveri Hoover's spurge

• rare native
Annual herb

2003 George W. Hartwell

2023 David popp

Euphorbia marginata Snow on the mountain

non-native
Annual herb

2011 Luigi Rignanese

2001 CDFA

Euphorbia nutans Eyebane spurge

non-native
Annual herb

2012 Jake Ruygt

2019 David popp

2013 Zoya Akulova

Euphorbia ocellata ssp. rattanii Stony creek spurge

• rare native
Annual herb

2023 Donald Burk

Euphorbia parryi Parry's spurge

• rare native
Annual herb

2011 Keir Morse

Euphorbia pediculifera Carrizo mountain sandmat

native
Perennial herb

2013 Keir Morse

2019 Steven MacDonald

2013 Keir Morse

Euphorbia platysperma Flat-seeded spurge

• rare native
Annual herb

Euphorbia pulcherrima Poinsettia

non-native
Shrub

2010 Moorea Biocode

2021 Terry Coomber

2007 Luigi Rignanese

Euphorbia revoluta Revolute spurge

• rare native
Annual herb

2011 Keir Morse

2016 Keir Morse

2011 Keir Morse

Euphorbia serpillifolia ssp. hirtula Hairy thyme leafed spurge

native
Annual, Perennial herb

2017 David Greenberger

2012 Aaron Schusteff

Euphorbia serrata Saw toothed spurge, Serrate spurge

non-native
Perennial herb

2001 CDFA

Euphorbia vallis-mortae Death valley sandmat

• rare native
Perennial herb

2012 Neal Kramer

2003 Aaron Schusteff

Euphrosyne acerosa Copperwort

• rare native
Perennial herb

2010 James M. Andre

2023 Zoya Akulova-Barlow

Euryops pectinatus Golden daisy bush

non-native
Shrub

2019 Zoya Akulova (cultivated)

2015 Richard Spellenberg

Fagopyrum esculentum Domestic buckwheat

non-native
Annual herb

2011 Louis-M. Landry

Fatoua villosa Hairy crabweed

non-native
Annual herb

MORACEAE

Festuca ammobia Sand fescue

native
Perennial grass

Festuca arvernensis Field fescue

non-native
Perennial grass

2021 Ron Vanderhoff

Festuca brachyphylla ssp. breviculmis Short leaved fescue

native
Perennial grass

2016 Dean Wm. Taylor

Festuca ovina Sheep fescue

non-native
Perennial grass

Festuca pratensis Meadow fescue

non-native
Perennial grass

2023 Elliot Gunnison

2012 Al Keuter

Festuca rigida Rigid italian rye grass

non-native
Annual grass

2018 Tim Buonaccorsi

Festuca rubra ssp. pruinosa Red fescue

native
Perennial grass

Festuca rubra ssp. rubra Red fescue

native
Perennial grass

2018 Susan McDougall

Festuca saximontana Rocky mountain fescue

native
Perennial grass

2008 Steve Matson

Festuca trachyphylla Hard fescue, Rough leaved fescue

non-native
Perennial grass

2006 Louis-M. Landry

Ficus palmata Punjab fig

non-native
Shrub

MORACEAE

Fimbristylis autumnalis Slender fimbry

non-native
Annual grasslike herb

2021 Donald Burk

2006 Dean Wm. Taylor

Fimbristylis vahlii Vahl's fimbristylis, Vahl's fimbry

native
Annual grasslike herb

2004 Steve Matson

Fissidens aphelotaxifolius Fissidens moss

• rare native
Moss

FISSIDENTACEAE

Fissidens sublimbatus Fissidens moss

native
Moss

FISSIDENTACEAE

2023 Chris wagner

Floerkea proserpinacoides False mermaidweed

native
Annual herb

2011 Aaron Schusteff

2011 RT Hawke

2012 Gary A. Monroe

Frangula californica ssp. crassifolia Serpentine hoary coffeeberry

native
Shrub

2017 Pete Veilleux

Frangula californica ssp. ursina Desert hoary coffeeberry

native
Shrub

2020 David Greenberger

Frangula rubra ssp. modocensis Modoc buckthorn

native
Shrub

2015 Susan McDougall

Frangula rubra ssp. yosemitana Yosemite buckthorn

native
Shrub

Frankenia pulverulenta European sea heath

non-native
Perennial herb

FRANKENIACEAE

2015 Keir Morse

Frasera albomarginata Desert frasera

native
Perennial herb

2005 James M. Andre

2020 David Greenberger

2010 James M. Andre

Frasera albomarginata var. induta Clark mountain green-gentian

• rare native
Perennial herb

2005 James M. Andre

2020 Matt C. Berger

2008 Jason E. Willand

Frasera umpquaensis Umpqua green-gentian

• rare native
Perennial herb

2010 Norman Jensen

2008 Amanda Shufelberger

Fraxinus parryi Chaparral ash

• rare native
Shrub

2003 Charles E. Jones

Fritillaria biflora var. ineziana Hillsborough chocolate lily

• rare native
Perennial herb (bulb)

2004 Toni Corelli

Fritillaria gentneri Gentner's fritillary

• rare native
Perennial herb

2005 Kathleen Moody

2008 Shawn DeCew

2013 Scot Loring

Fuchsia hybrida Hybrid fuchsia

non-native
Shrub

Fuchsia paniculata Shrubby fuchsia

non-native
Shrub

2018 Zoya Akulova

Funastrum crispum Wavyleaf twinevine

• rare native
Perennial herb

2016 Keir Morse

Gaillardia aristata Blanketflower, Common gaillardia, Common Indian blanket

non-native
Perennial herb

2006 Louis-M. Landry

2005 Louis-M. Landry

2013 Wynn Anderson

Galeopsis tetrahit Brittlestem hempnettle

non-native
Annual herb

2005 Louis-M. Landry

Galium angustifolium ssp. borregoense Borrego bedstraw

• rare native
Perennial herb

2012 Keir Morse

Galium angustifolium ssp. gabrielense San antoinio canyon bedstraw, San antonio canyon bedstraw

• rare native
Perennial herb

2019 Keir Morse

Galium angustifolium ssp. gracillimum Narrow leaved bedstraw, Slender bedstraw

• rare native
Perennial herb

2022 Eric Koberle

Galium angustifolium ssp. jacinticum San jacinto bedstraw, San jacinto mtns. bedstraw

• rare native
Perennial herb

2015 Keir Morse

Galium angustifolium ssp. nudicaule Naked stem bedstraw, Narrowleaf bedstraw

native
Perennial herb

2014 Keir Morse

Galium angustifolium ssp. onycense Onyx peak bedstraw

• rare native
Perennial herb

Galium argense Argus bedstraw

native
Perennial herb

Galium boreale Northern bedstraw

native
Perennial herb

2015 Barry Breckling

2010 Barry Breckling

2012 Trent M. Draper

Galium buxifolium Box bedstraw

• rare native
Shrub

2021 James Bailey

Galium californicum ssp. maritimum Coastal california bedstraw

native
Perennial herb

2012 BOB CASE

2022 Irene Rosen

Galium californicum ssp. primum California bedstraw

• rare native
Perennial herb

2013 Keir Morse

Galium californicum ssp. sierrae El dorado bedstraw

• rare native
Perennial herb

2023 Jake Picardat

2002 Steve Tyron

2011 Steven Perry

Galium catalinense Santa catalina island bedstraw

native
Perennial herb

2011 Dylan Neubauer

2002 Dean Wm. Taylor

2011 Neal Kramer

Galium catalinense ssp. acrispum San clemente island bedstraw, Santa clemente island bedstraw

• rare native
Shrub

2011 Dylan Neubauer

2002 Dean Wm. Taylor

2011 Neal Kramer

Galium catalinense ssp. catalinense Santa catalina island bedstraw

• rare native
Shrub

2009 Vince Scheidt

Galium clementis Santa Lucia bedstraw

• rare native
Perennial herb

2005 Dean Wm. Taylor, Ph.D.

Galium cliftonsmithii Santa barbara bedstraw

• rare native
Perennial herb

2019 Justin Luong

2023 Keir Morse

Galium divaricatum Lamarck's bedstraw

non-native
Annual herb

2001 Julie Kierstead Nelson

2020 Jean Pawek

Galium glabrescens ssp. modocense Modoc bedstraw

• rare native
Perennial herb

Gary Schoolcraft and CNPS

Galium grande San gabriel bedstraw

• rare native
Shrub

2023 Keir Morse

Galium hardhamiae Hardham's bedstraw

• rare native
Perennial herb

1984 California Native Plant Society

Galium hilendiae ssp. hilendiae Hilend's bedstraw

native
Perennial herb

Galium hilendiae ssp. kingstonense Kingston mountains bedstraw, Kingston mtns. bedstraw

• rare native
Perennial herb

2011 Duncan S. Bell

Galium hypotrichium ssp. ebbettsense Alpine bedstraw, Ebbett's bedstraw

native
Perennial herb

Galium hypotrichium ssp. hypotrichium Alpine bedstraw

native
Perennial herb

2019 Bob Sweatt

2016 Keir Morse

Galium hypotrichium ssp. subalpinum Subalpine bedstraw

native
Perennial herb

Galium jepsonii Jepson's bedstraw

• rare native
Perennial herb (rhizomatous)

2015 Keir Morse

2021 Joy England

Galium johnstonii Johnston's bedstraw

• rare native
Perennial herb

2014 Keir Morse

Galium magnifolium Large leaf bedstraw, Largeleaf bedstraw

native
Perennial herb

Galium mollugo False baby's breath, Hedge bedstraw, Wild madder

non-native
Perennial herb

2009 Phil Pullen

2008 Dr. Amadej Trnkoczy

Galium munzii Munz's bedstraw

• rare native
Perennial herb

Galium proliferum Desert bedstraw, Limestone bedstraw

• rare native
Annual herb

2011 Duncan S. Bell

2011 Teague Embrey

2011 Duncan S. Bell

Galium saxatile Heath bedstraw, Rock bedstraw

non-native
Perennial herb

Galium schultesii Schultes' bedstraw

non-native
Perennial herb

Galium sparsiflorum ssp. glabrius Sequoia bedstraw

native
Perennial herb

2019 David popp

Galium tricornutum Rough bedstraw, Roughfruit corn bedstraw

non-native
Annual herb

2007 Luigi Rignanese

2020 David popp

2007 Luigi Rignanese

Galium trifidum ssp. subbiflorum Threepetal bedstraw

native
Perennial herb

2022 David popp

2023 David popp

Galium verum Ladie's bedstraw, Yellow spring bedstraw

non-native
Vine

Gerald and Buff Corsi 2002 California Academy of Sciences

2006 Dr. Amadej Trnkoczy

Galium wrightii Wright's bedstraw, Wright's galium

• rare native
Perennial herb

Gamochaeta argyrinea Silver Cudweed

native
Perennial herb

2022 David popp

Gamochaeta coarctata Gray everlasting

non-native
Perennial herb

2022 Shawna Martinez

Gamochaeta stachydifolia

non-native
Perennial herb

Gamochaeta stagnalis Desert cudweed

non-native
Perennial herb

2023 Ron Vanderhoff

Gaudinia fragilis Fragile oat

non-native
Annual, Biennial grass

Gayophytum heterozygum Zig zag gayophytum, Zigzag groundsmoke

native
Annual herb

2003 Christopher L. Christie

2023 Ryan O'Dell

2020 Alaine Arslan

Gayophytum oligospermum Pinegrove gayophytum, Pinegrove groundsmoke

native
Annual herb

2011 Keir Morse

Genista canariensis Canary broom, Canary island broom

non-native
Shrub

2001 CDFA

Genista maderensis Madeira dyer's greenweed, Madera broom

non-native
Shrub

Genista stenopetala Leafy broom, Narrow petaled broom

non-native
Shrub

Gentiana affinis var. parvidentata Small toothed prairie gentian

• rare native
Perennial herb

2009 Vernon Smith

2003 Brad Kelley

Gentiana fremontii Moss gentian

• rare native
Annual herb

2010 John Game

Gentiana prostrata Pygmy gentian

• rare native
Perennial herb

2009 Ron Wolf

Gerald and Buff Corsi 2010 California Academy of Sciences

Gentiana sceptrum King's scepter gentian

native
Perennial herb

2012 Barry Rice

2011 Ryan Batten

Charles Webber1998 California Academy of Sciences

Gentiana setigera Mendocino gentian

• rare native
Perennial herb

2007 Keir Morse

Geothallus tuberosus Campbell's liverwort

• rare native
Liverwort

SPHAEROCARPACEAE

2023 Nathan Taylor

Geranium aequale

non-native
Perennial herb

Geranium bicknellii Bicknell's cranesbill, Bicknell's geranium

native
Annual herb

2010 Jeff Abbas

2006 Louis-M. Landry

2010 Jeff Abbas

Geranium columbinum Longstalk cranesbill

non-native
Annual herb

2004 Dr. Amadej Trnkoczy

Geranium potentilloides Cinquefoil geranium, New zealand geranium

non-native
Perennial herb

2008 Jorg Fleige

2008 Doreen L. Smith

Geranium pusillum Small flowered geranium, Small geranium

non-native
Annual herb

2014 Zoya Akulova

2016 Dr. Amadej Trnkoczy

2012 Phil Pullen

Geranium pyrenaicum Hedgerow geranium

non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2021 Zoya Akulova

2004 Dr. Amadej Trnkoczy

Geranium retrorsum New zealand geranium

non-native
Perennial herb

2012 Gary A. Monroe

Geum aleppicum Aleppo avens, Yellow avens

• rare native
Perennial herb

2010 Louis-M. Landry

2008 Louis-M. Landry

2010 Louis-M. Landry

Geum macrophyllum var. macrophyllum Largeleaf avens

native
Perennial herb

2021 Dana York

2014 John Doyen

Gilia aliquanta ssp. aliquanta Puff calyx gilia, Puffcalyx gilia

native
Annual herb

2006 James M. Andre

2017 John Doyen

2005 Michael Charters

Gilia austro-occidentalis Southwestern gilia

native
Annual herb

2009 Adonis (Don) Tate

Gilia cana ssp. bernardina Showy gilia

native
Annual herb

2014 Neal Kramer

Gilia latiflora ssp. cuyamensis Cuyama gilia, Hollyleaf gilia

• rare native
Annual herb

2012 Michael Charters

Gilia latiflora ssp. elongata Broad flowered gilia, Hollyleaf gilia

native
Annual herb

2016 John Doyen

2018 John Doyen

2016 John Doyen

Gilia leptantha ssp. leptantha Fine flower gilia, Fineflower gilia

• rare native
Annual herb

2016 Steven Thorsted

2009 Duncan S. Bell

Gilia leptantha ssp. pinetorum Fineflower gilia, Pine gilia

• rare native
Annual herb

2016 Keir Morse

2018 Neal Kramer

Gilia leptantha ssp. transversa Fine flower gilia, Fineflower gilia

native
Annual herb

Gilia malior Scrub gilia

native
Annual herb

2014 Steve Matson

2006 James M. Andre

Gilia mexicana El paso gilia

• rare native
Annual herb

2018 Wynn Anderson

Gilia nevinii Nevin's gilia

• rare native
Annual herb

2011 Dylan Neubauer

2011 Neal Kramer

2011 Michelle Cloud-Hughes

Gilia ochroleuca ssp. bizonata Volcanic gilia

native
Annual herb

2019 Diane Etchison

2008 Lynn Watson

Gilia ochroleuca ssp. exilis Volcanic gilia

native
Annual herb

2010 Michael Charters

Gilia ochroleuca ssp. lanosa Sisquoc gilia

• rare native
Annual herb

Gilia tenuiflora ssp. amplifaucalis Greater yellowthroat gilia, Spreading slender flowered gilia

• rare native
Annual herb

Gilia tenuiflora ssp. hoffmannii Hoffman's gilia, Hoffman's slender flowered gilia, Hoffmann's slender flowered gilia

• rare native
Annual herb

2000 John Game

Gilia yorkii Boyden cave gilia

• rare native
Annual herb

2010 Dana York

Githopsis diffusa ssp. filicaulis Mission canyon bluecup, San gabriel bluecup

• rare native
Annual herb

Githopsis diffusa ssp. robusta San gabriel bluecup

native
Annual herb

2012 Anuja Parikh and Nathan Gale

2012 Aaron Arthur

2012 Anuja Parikh and Nathan Gale

Githopsis pulchella var. glabra Sierra bluecup

native
Annual herb

1998 Arthur H. Bazell, M.D.

Githopsis pulchella var. pulchella Largeflower bluecup

native
Annual herb

Githopsis tenella Tube flower bluecup, Tubeflower bluecup

• rare native
Annual herb

Gladiolus italicus Italian gladiolus

non-native
Perennial herb

2006 Luigi Rignanese

Gladiolus tristis Ever flowering gladiolus

non-native
Perennial herb (bulb)

Glandularia peruviana Peruvian mock vervain

non-native
Perennial herb

2007 Zoya Akulova

Glechoma hederacea Ground ivy

non-native
Perennial herb

2005 Louis-M. Landry

2004 Dr. Amadej Trnkoczy

Glossopetalon pungens Dwarf greasebush, Pungent glossopetalon, Smooth greasewood

• rare native
Shrub

CROSSOSOMATACEAE

2010 James M. Andre

Glyceria borealis Northern mannagrass, Small floating mannagrass

native
Perennial grass

2008 Louis-M. Landry

Glyceria fluitans Water mannagrass

non-native
Perennial grass

Glyceria grandis American mannagrass

• rare native
Perennial grass (rhizomatous)

2004 Dean Wm. Taylor

Glyceria striata Fowl mannagrass

native
Perennial grass

2007 Keir Morse

2023 Mary Merriman

2007 Keir Morse

Gossypium hirsutum Upland cotton

non-native
Annual herb,Perennial herb,Tree,Shrub

2012 Neal Kramer

Graphis saxorum Baja rock lichen

• rare native
Lichen

GRAPHIDACEAE

Gratiola heterosepala Boggs lake hedge hyssop

• rare native
Annual herb

2004 Carol W. Witham

2010 Doug Wirtz

Greeneocharis circumscissa var. rosulata rosette cushion cryptantha

• rare native
Annual herb

Greeneocharis circumscissa var. rosulata

2011 James M. Andre

2011 James M. Andre

Grimmia vaginulata Vaginulate grimmia

• rare native
Moss

GRIMMIACEAE

Grindelia fraxinipratensis Ash meadows gumplant

• rare native
Perennial herb

2010 James M. Andre

Grindelia hallii San diego gumplant

• rare native
Perennial herb

2014 Keir Morse

Grindelia hirsutula var. maritima Coastal gumweed, San francisco gum plant, San francisco gumplant

• rare native
Perennial herb

2016 Neal Kramer

2009 Neal Kramer

Grindelia papposa Spanish gold

non-native
Annual, Biennial herb

2009 Doug Wirtz

Grusonia pulchella Sagebrush cholla

• rare native
Shrub (stem succulent)

2010 Neal Kramer

Guilleminea densa Small matweed

non-native
Perennial herb

Guilleminea densa var. aggregata Guilleminea, Small matweed

non-native
Perennial herb

Guizotia abyssinica Ramtilla

non-native
Annual herb

2009 Luigi Rignanese

Gypsophila elegans Showy baby's breath

non-native
Annual, Biennial herb

2011 Louis-M. Landry

Gypsophila scorzonerifolia Baby's breath, Garden babysbreath

non-native
Perennial herb

2018 Joe Woods

Hackelia cusickii Cusick stickweed, Cusick's stickseed

• rare native
Perennial herb

2004 Robert E. Preston, Ph.D.

2011 Dean Wm. Taylor, Ph.D.

Hackelia floribunda Many flowered stickseed, Manyflower stickseed

native
Perennial herb

2001 Jeff Abbas

2010 Ron Wolf

Hackelia setosa Bristly stickseed

native
Perennial herb

1995 Saint Mary's College of California

Halimium lasianthum Lisbon false sun rose

non-native
Shrub

Halimodendron halodendron Common salttree, Russian salt tree

non-native
Shrub

2001 CDFA

Halodule wrightii Shoal grass

non-native
Perennial herb

CYMODOCEACEAE

Haloragis erecta Erect seaberry, Sea berry

non-native
Shrub

HALORAGACEAE

Haplodontium tehamense Lassen peak copper moss

• rare native
Moss

Hazardia cana Guadalupe hazardia, Island hazardia, San clemente island hazardia

• rare native
Shrub

2009 Zoya Akulova

2005 Dieter Wilken

Hazardia orcuttii Orcutt's bristleweed, Orcutt's hazardia

• rare native
Shrub

2011 Keir Morse

Hebe speciosa New zealand hebe, Showy hebe

non-native
Shrub

J.W. Thompson1999 California Academy of Sciences

Hebe Xfranciscana Hebe

non-native
Shrub

Hedeoma drummondii Drummond's false pennyroyal

• rare native
Shrub (stem succulent)

2009 Lee Dittmann

2005 James M. Andre

2016 Wynn Anderson

Hedera hibernica Atlantic ivy

non-native
Vine

ARALIACEAE

Hedwigia detonsa

native
Moss

HEDWIGIACEAE

2013 calbryos group

2016 Richard Spjut

2013 Scot Loring

Hedwigia stellata

native
Moss

HEDWIGIACEAE

2005 Chris Wagner

Hedychium flavescens Cream garland lily

non-native
Perennial herb

ZINGIBERACEAE

2010 Moorea Biocode

Helenium amarum Yellow sneezeweed, Yellowdicks

non-native
Annual herb

2001 CDFA

Helenium amarum var. amarum Yellowdicks

non-native
Annual herb

Helianthus ciliaris Texas blueweed

non-native
Perennial herb

2001 CDFA

Helianthus cusickii Cusick's sunflower

native
Perennial herb

2015 John Doyen

2008 Matt Below

2015 John Doyen

Helianthus inexpectatus Newhall sunflower

• rare native
Perennial herb

2012 Anuja Parikh and Nathan Gale

Helianthus nuttallii ssp. parishii Los angeles sunflower, Parish's sunflower

• rare native
Perennial herb (rhizomatous)

Helianthus petiolaris ssp. petiolaris Prairie sunflower

non-native
Perennial herb

2015 Richard Spellenberg

Heliomeris hispida Hairy golden eye, Rough false goldeneye

non-native
Annual herb

Heliotropium convolvulaceum Phlox heliotrope

native
Annual herb

HELIOTROPIACEAE

2005 James M. Andre

2010 Jean Pawek

Heliotropium convolvulaceum var. californicum Morning glory heliotrope, Phlox heliotrope

native
Annual herb

HELIOTROPIACEAE

Heliotropium convolvulaceum var. californicum

2015 Keir Morse

2001 Kathi Ellsworth

2015 Keir Morse

Heliotropium supinum Dwarf heliotrope

non-native
Annual herb

HELIOTROPIACEAE

Helodium blandowii Blandow's helodium moss

native
Moss

HELODIACEAE

2002 John Game

Heracleum mantegazzianum Giant hogweed

non-native
Perennial herb

2008 Bill Moses

Herissantia crispa Bladdermallow, Curly herissantia

• rare native
Annual, Perennial herb

2012 Chris Trask

2004 Debra Valov

Hesperolinon adenophyllum Glandular dwarf flax, Glandular western flax

• rare native
Annual herb

2002 John Game

2006 Kerry Heise

Hesperolinon didymocarpum Lake county dwarf flax, Lake county western flax

• rare native
Annual herb

2018 Aaron Arthur

Hesperolinon drymarioides Drymaria like western flax, Drymary dwarf flax

• rare native
Annual herb

Niall McCarten and CNPS

2013 Jake Ruygt

Niall McCarten and CNPS

Hesperolinon tehamense Paskenta grade dwarf flax, Tehama county western flax

• rare native
Annual herb

Roxanne Bittman and CNPS

1997 Dean Wm. Taylor

Heteranthemis viscidihirta Sand chrysanthemum

non-native
Annual herb

2012 Zoya Akulova

2015 Richard Spellenberg

2012 Zoya Akulova

Heteranthera dubia Grassleaf mudplantain, Water star grass

• rare native
Perennial herb

PONTEDERIACEAE

2008 Louis-M. Landry

Heteranthera rotundifolia Roundleaf mudplantain

non-native
Annual herb

PONTEDERIACEAE

2022 Neal Kramer

Heteropogon contortus Tanglehead

native
Perennial grass

2008 Steve Matson

Heterotheca monarchensis Sequoia false goldenaster

• rare native
Perennial herb

1996 Dana York

Heterotheca subaxillaris Camphorweed

native
Perennial herb

2015 Richard Spellenberg

2014 Richard Spellenberg

Heterotheca subaxillaris ssp. latifolia Camphor weed

native
Annual, Perennial herb

2015 Jean Pawek

Heterotheca villosa var. scabra Hairy false goldenaster, Rough hairy goldenaster

native
Perennial herb

Heuchera abramsii Abrams's alumroot, San gabriel alumroot

• rare native
Perennial herb (rhizomatous)

2005 Charles E. Jones

Heuchera hirsutissima Shaggy haired alumroot, Shaggyhair alumroot

• rare native
Perennial herb (rhizomatous)

2009 Thomas Stoughton

2015 Keir Morse

Heuchera parishii Mill creek alumroot, Parish's alumroot

• rare native
Perennial herb (rhizomatous)

2012 Keir Morse

Heuchera rubescens var. versicolor Pink alumroot, San diego county alumroot

• rare native
Perennial herb (rhizomatous)

2013 Richard Spellenberg

Hieracium aurantiacum Orange flowered hawkweed, Orange hawkweed

non-native
Perennial herb

2005 Louis-M. Landry

2014 Yoseinvasives 3

2010 Jeff Abbas

Hieracium parryi Scouler's woollyweed

native
Perennial herb

2008 Keir Morse

2016 Keir Morse

Holcus mollis Creeping velvetgrass

non-native
Perennial grass

2008 Steve Matson

Hordeum arizonicum Arizona barley, Arizona foxtail

native
Annual grass

2011 Steve Matson

Horkelia congesta Sierra horkelia

native
Perennial herb

2015 John Doyen

2011 Doreen L. Smith

2015 John Doyen

Horkelia congesta var. nemorosa Josephine horkelia

• rare native
Perennial herb

2015 John Doyen

2011 Doreen L. Smith

Horkelia daucifolia var. daucifolia Carrot leafed horkelia

native
Perennial herb

2016 Julie Kierstead Nelson

Horkelia fusca var. brownii Tawny horkelia

native
Perennial herb

2019 Belinda Lo

Horkelia howellii Howell's horkelia

native
Perennial herb

2008 Keir Morse

Horkelia sericata Howell's horkelia, Silky horkelia

• rare native
Perennial herb

2015 John Doyen

2014 John Doyen

2010 Sean B. Smith

Horsfordia alata Pink velvet mallow, Pink velvetmallow

• rare native
Shrub

2017 Fred Melgert / Carla Hoegen

2004 Debra Valov

Hosackia crassifolia var. otayensis Otay mountain hosackia

• rare native
Perennial herb

2022 Becky Escalante

Hosackia incana Woolly lotus

native
Perennial herb

2011 Steven Perry

Hosackia yollabolliensis Yolla bolly mtns. bird's-foot trefoil

• rare native
Perennial herb

2013 Shasta-Trinity National Forest

Hulsea mexicana Mexican alpinegold, Mexican hulsea

• rare native
Annual, Perennial herb

2018 Aaron Schusteff

Humulus lupulus Common hop, Hops

non-native
Perennial herb

CANNABACEAE

2010 Barry Breckling

2005 Louis-M. Landry

2007 Louis-M. Landry

Hunnemannia fumariifolia Mexican tulip poppy

non-native
Perennial herb

2013 Richard Spellenberg

Hydrilla verticillata Hydrilla, Waterthyme

• invasive non-native
Perennial herb

2001 CDFA

Hydrocharis morsus-ranae Common frogbit

non-native
Perennial herb

2006 Louis-M. Landry

Hydrophyllum tenuipes Pacific waterleaf

native
Perennial herb

2021 Dana York

2011 Jean Pawek

Hymenopappus filifolius var. eriopodus Fineleaf hymenopappus, Hairy podded columbia cutleaf

• rare native
Perennial herb

2008 Jason E. Willand

2020 Matt C. Berger

2006 Trent M. Draper

Hymenopappus filifolius var. megacephalus Fineleaf hymenopappus, Large headed columbia cutleaf

native
Perennial herb

Hymenopappus filifolius var. megacephalus

2004 James M. Andre

2009 Barry Breckling

Hymenothrix dissecta Ragged leaf bahia

native
Perennial herb

2023 R.A. Chasey

2020 Eric Koberle

2023 R.A. Chasey

Hymenothrix loomisii Loomis' thimblehead

non-native
Annual, Perennial herb

2013 Richard Spellenberg

Hymenothrix wrightii Wright's thimblehead

• rare native
Perennial herb

2014 Keir Morse

Hymenoxys lemmonii Lemmon's goldflower, Lemmon's rubberweed

• rare native
Perennial herb

2006 Steve Matson

2016 John Doyen

2006 Steve Matson

Hymenoxys odorata Bitter rubberweed, Fragrant bitter weed

• rare native
Annual herb

2015 Richard Spellenberg

Hyparrhenia hirta Thatching grass

• invasive non-native
Perennial grass

2008 Steve Matson

Hypericum formosum St john's wort

native
Perennial herb

HYPERICACEAE

2011 Steven Thorsted

2005 Jerry Murray

Hypericum hookerianum Hooker's st. johnswort

non-native
Shrub

HYPERICACEAE

Hypogymnia heterophylla Tube lichen

native
Lichen

PARMELIACEAE

2018 Scot Loring

Hypogymnia schizidiata Island rock lichen

• rare native
Lichen

PARMELIACEAE

Impatiens capensis Jewelweed

non-native
Perennial herb

BALSAMINACEAE

2005 Louis-M. Landry

Imperata brevifolia California satintail

• rare native
Perennial grass

2008 Steve Matson

Inula helenium Elecampane inula

non-native
Perennial herb

2004 Nick Kurzenko

2008 Louis-M. Landry

Ionopsidium acaule Diamond flower, False diamondflower

non-native
Annual herb

Ipheion uniflorum Spring star flower

non-native
Perennial herb

2012 Zoya Akulova

2013 Scott Batiuk

2015 Debra L. Cook

Ipomoea aquatica Swamp morning glory

• invasive non-native
Perennial herb, Vine

Ipomoea hederacea Ivyleaf morning glory

non-native
Annual herb, Vine

2009 Barry Rice

Ipomoea lacunosa Whitestar

non-native
Annual herb, Vine

Ipomoea nil Ivy morning glory, Whiteedge morning glory

non-native
Annual herb, Vine

2013 Debra L. Cook

Gerald and Buff Corsi2010 California Academy of Sciences

Ipomoea triloba Little bell morning glory, Littlebell

non-native
Annual herb, Vine

2020 Debra Valov

Ipomopsis effusa Baja california ipomopsis

• rare native
Annual herb

2014 Aaron Schusteff

Ipomopsis tenuifolia Slender leaved ipomopsis, Slenderleaf skyrocket

• rare native
Perennial herb

2023 Matt Berger

2005 Christopher L. Christie

2023 Matt Berger

Iris bracteata Siskiyou iris

• rare native
Perennial herb (rhizomatous)

2023 Dana York

Iris hartwegii ssp. columbiana Rainbow iris, Tuolumne iris

• rare native
Perennial herb (rhizomatous)

Iris orientalis Yellowband iris

non-native
Perennial herb

Iris sibirica Siberian iris

non-native
Perennial herb (rhizomatous)

2006 Dr. Amadej Trnkoczy

Iris spuria Seashore iris

non-native
Perennial herb (rhizomatous)

Iris tenax ssp. klamathensis Klamath iris, Orleans iris

• rare native
Perennial herb (rhizomatous)

2017 Dana York

2012 Dana York

Iris tenuissima ssp. purdyiformis Longtube iris, Purdy's iris, Slender iris

native
Perennial herb

2023 Alaine Arslan

2015 Susan McDougall

Isocoma menziesii var. decumbens Decumbent goldenbush, Menzies' goldenbush

• rare native
Shrub

2017 Neil Uelman

Isoetes echinospora Spiny spored quillwort

native

ISOETACEAE

Isolepis setacea Bristleleaf bulrush

non-native
Perennial grasslike herb

2004 Steve Matson

Ivesia arizonica Rock whitefeather

native
Perennial herb

2012 Dana York

Ivesia arizonica var. arizonica Arizona whitefeather, Yellow ivesia

• rare native
Perennial herb

2021 Matt C. Berger

Ivesia baileyi var. baileyi Bailey's ivesia

• rare native
Perennial herb

1990 Dean Wm. Taylor

Ivesia callida Tahquitz ivesia, Tahquitz mousetail

• rare native
Perennial herb

2005 US Forest Service

2008 Jordan Zylstra

Ivesia paniculata Ash creek ivesia, Ash creek mousetail

• rare native
Perennial herb

2007 F. Gauna

Ivesia patellifera Kingston mountain mousetail, Kingston mtns. ivesia

• rare native
Perennial herb

2017 Duncan S. Bell

Jaffueliobryum wrightii Wright's jaffueliobryum moss

• rare native
Moss

GRIMMIACEAE

2023 Chris wagner

Jarava plumosa South american rice grass

non-native
Perennial grass

Jasminum multiflorum Star jasmine

non-native
Vine, Shrub

2015 jamie smith

Jepsonia heterandra Foothill jepsonia

• rare native
Perennial herb

2012 Lynn Robertson

2024 Ryan Donnelly

2014 Belinda Lo

Johanneshowellia puberula Red creek buckwheat

• rare native
Annual herb

2001 Dana York

Johnstonella angelica Angelic johnstonella

native
Annual herb

2022 Michael G. Simpson

Juncus ambiguus Saline toad rush, Seasice rush

native
Annual grasslike herb

2011 Hattie Brown (Juncus bufonius)

2011 Aaron Arthur (Juncus bufonius)

2007 Dr. Amadej Trnkoczy (Juncus bufonius)

Juncus brachyphyllus Short leaved rush, Tuftedstem rush

native
Perennial grasslike herb

Juncus bryoides Moss rush

native
Annual grasslike herb

2009 Thomas Stoughton

2009 Neal Kramer

2009 Thomas Stoughton

Juncus bulbosus Bulbous rush

non-native
Perennial grasslike herb

Juncus capillaris Hairystem dwarf rush, Slender stemmed dwarf rush

native
Annual grasslike herb

2023 R.A. Chasey

2003 Steve Matson

Juncus covillei Coville's rush

native
Perennial grasslike herb

2013 Dana York

2013 Jake Ruygt

Juncus cyperoides Forbestown rush, Sedge rush

non-native
Perennial grasslike herb

Juncus dichotomus Forked rush

non-native
Perennial grasslike herb

Juncus diffusissimus Slim podded rush, Slimpod rush

non-native
Perennial grasslike herb

2004 Steve Matson

Juncus digitatus Finger rush

• rare native
Perennial grasslike herb

2008 Carol W. Witham

2011 Christopher Bronny

Juncus drummondii Drummond's rush

native
Perennial grasslike herb

2007 Steve Matson

2023 Mike Russler

Juncus dubius Dubius rush, Mariposa rush

native
Perennial grasslike herb

2015 Keir Morse

Juncus dudleyi Dudley's rush

• rare native
Perennial grasslike herb

2017 Dean Wm. Taylor

Juncus duranii Duran's rush

• rare native
Perennial grasslike herb (rhizomatous)

2017 Keir Morse

Juncus effusus ssp. austrocalifornicus Common bog rush

native
Perennial grasslike herb

Juncus effusus ssp. effusus Common rush

non-native
Perennial grasslike herb

2007 Dr. Amadej Trnkoczy

Juncus exiguus Klamath or weak rush

native
Perennial grasslike herb

2004 Steve Matson

2012 Virginia Moran

Juncus falcatus ssp. falcatus Falcate rush

native
Perennial grasslike herb

2013 Vernon Smith

2004 Steve Matson

2009 Neal Kramer

Juncus hemiendytus var. hemiendytus Herman's dwarf rush, Vernal pool rush

native
Annual grasslike herb

2020 Belinda Lo

2003 Steve Matson

Juncus howellii Howell's rush

native
Perennial grasslike herb

2004 Steve Matson

2023 Julie A. Kierstead

Juncus interior Inland rush

• rare native
Perennial grasslike herb

2011 James M. Andre

Juncus kelloggii Kellogg's dwarf rush

native
Annual grasslike herb

2011 Ryan Batten

2013 Robert Steers/NPS

Juncus leiospermus Red bluff dwarf rush

native
Annual grasslike herb

2023 Justin Chappelle

2023 Donald Burk

Juncus leiospermus var. ahartii Ahart's dwarf rush

• rare native
Annual grasslike herb

2023 Justin Chappelle

2004 Carol W. Witham

Juncus leiospermus var. leiospermus Red bluff dwarf rush

• rare native
Annual grasslike herb

2008 John Dittes

2021 David popp

2023 Donald Burk

Juncus longistylis Long styled rush, Longstyle rush

native
Perennial grasslike herb

2004 Steve Matson

Juncus luciensis Santa lucia dwarf rush, Santa lucia rush

• rare native
Annual grasslike herb

2023 Matt Berger

Juncus marginatus Grassleaf rush

native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Juncus nevadensis var. inventus Dune rush

• rare native
Perennial grasslike herb

Juncus nevadensis var. nevadensis Nevada or sierran rush

native
Perennial grasslike herb

2012 Aaron Arthur

Juncus nodosus Knotted rush

• rare native
Perennial grasslike herb (rhizomatous)

2005 James M. Andre

2010 Louis-M. Landry

Juncus regelii Regel's rush

• rare native
Perennial grasslike herb (rhizomatous)

2018 Susan McDougall

Juncus saximontanus Rocky mountain rush

native
Perennial grasslike herb

2005 Steve Matson

Juncus supiniformis Hair leaved rush, Hairyleaf rush

• rare native
Perennial grasslike herb (rhizomatous)

2013 Asa Spade

Juncus tiehmii Nevada rush, Tiehm's rush

native
Annual grasslike herb

2005 Steve Matson

2003 Steve Matson

Juncus triformis Yosemite dwarf rush

native
Annual grasslike herb

2003 Steve Matson

Juncus uncialis Inch high dwarf rush, Twelfth rush

native
Annual grasslike herb

2023 Robin Carter-Ervin

2014 Sierra Pacific Industries

Juncus usitatus

non-native
Perennial grasslike herb

2021 Richard Spjut

Juniperus scopulorum Rocky mountain juniper

non-native
Tree

CUPRESSACEAE

2016 Zoya Akulova

Kallstroemia grandiflora Arizona caltrop, Arizona poppy

non-native
Annual herb

ZYGOPHYLLACEAE

2014 Wynn Anderson

2013 Keir Morse

2014 Wynn Anderson

Kallstroemia parviflora Few flowered caltrop, Warty caltrop

• rare native
Annual herb

ZYGOPHYLLACEAE

2013 Keir Morse

Keckiella ternata var. septentrionalis Northern blue stemmed keckiella

native
Shrub

2012 Neal Kramer

2012 Robert Sikora

2012 Neal Kramer

Kobresia myosuroides Bellardi bog sedge

• rare native
Perennial grasslike herb (rhizomatous)

1965 Dean Wm. Taylor

2010 Dr. Dean Wm. Taylor

Koeberlinia spinosa var. tenuispina Crown of thorns

• rare native
Shrub

KOEBERLINIACEAE

2013 Tim Thomas

2011 Dustin Ray

Koelreuteria elegans Flamegold

non-native
Tree

Lablab purpureus Hyacinthbean

non-native
Vine

2018 Zoya Akulova

Lactuca canadensis Canada lettuce, Canada wild lettuce

non-native
Perennial herb

2006 Louis-M. Landry

Lactuca ludoviciana Biannual lettuce, Louisiana wild lettuce

non-native
Perennial herb

Lactuca sativa Garden lettuce

non-native
Annual herb

2009 Barry Rice

Ordano � 2004 California Academy of Sciences

Lactuca tatarica Blue lettuce

native
Perennial herb

2016 Keir Morse

2017 John Doyen

1995 Saint Mary's College of California

Lactuca tatarica ssp. pulchella Blue lettuce

native
Perennial herb

2012 Richard Spellenberg

2014 Richard Spellenberg

2015 Richard Spellenberg

Lagerstroemia indica Crapemyrtle

non-native
Tree, Shrub

LYTHRACEAE

2005 Luigi Rignanese

Nick Kurzenko

Lagophylla dichotoma Forked hareleaf

• rare native
Annual herb

2010 Chris Winchell

2010 Ryan O'Dell

Lampranthus coccineus Redflush

non-native
Perennial herb

AIZOACEAE

2005 Louis-M. Landry

Landoltia punctata Dotted duckmeat

native
Annual, Perennial herb

2010 George W. Hartwell

2022 David popp

2010 George W. Hartwell

Lantana urticoides West indian shrubverbena

native
Shrub

2016 Wynn Anderson

Laportea aestuans West indian woodnettle

non-native
Annual, Perennial herb

URTICACEAE

Lappula squarrosa European stickseed

non-native
Annual herb

2008 Louis-M. Landry

Lasiospermum bipinnatum Woolly fruit

non-native
Perennial herb

2015 Richard Spellenberg

Lasthenia burkei Burke's baeria, Burke's goldfields

• rare native
Annual herb

2015 Neal Kramer

2018 Zoya Akulova

2002 John Game

Lasthenia leptalea Salinas valley goldfields

• rare native
Annual herb

Lathyrus biflorus Two flowered pea, Twoflower pea

• rare native
Perennial herb

2005 Jennifer L. Kalt

2009 Tony LaBanca

2005 Jennifer L. Kalt

Lathyrus glandulosus Redwood pea, Sticky pea

• rare native
Perennial herb (rhizomatous)

2011 Barrett Jeffery

Lathyrus lanszwertii var. tracyi Tracy's nevada pea, Tracy's pea

native
Perennial herb

2013 Scot Loring

Lathyrus polyphyllus Leafy pea, Oregon pea

native
Perennial herb

2005 Jerry Murray

2008 Keir Morse

2009 Zoya Akulova

Lathyrus rigidus Rigid pea, Stiff pea

• rare native
Perennial herb

2008 Christopher L. Christie

Lathyrus sativus White pea

non-native
Annual herb, Vine

Lathyrus sulphureus var. argillaceus Dubious pea, Snub pea

• rare native
Perennial herb

Lathyrus sylvestris Flat pea

non-native
Perennial herb

Lavatera assurgentiflora ssp. glabra Southern island mallow

• rare native
Shrub

1993 Dean Wm. Taylor

Lavatera olbia Tree lavatera

non-native
Shrub

2012 Dean Wm. Taylor, Ph.D.

Lavatera trimestris Annual mallow

non-native
Annual herb

2011 Nick Kurzenko

Nick Kurzenko

2011 Nick Kurzenko

Legousia speculum-veneris European venus' looking glass

non-native
Annual, Perennial herb

2008 Dr. Amadej Trnkoczy

Lemna aequinoctialis Lesser duckweed

native
Perennial herb

Lemna turionifera Turion duckweed

native
Perennial herb

2001 James B. Gratiot

2014 Jeff Greenhouse

Leontodon autumnalis Fall dandelion

non-native
Annual herb

2008 Zoya Akulova

2006 Louis-M. Landry

Leontodon saxatilis ssp. saxatilis

non-native
Perennial herb

2008 Dee Warenycia

2009 Zoya Akulova

Leonurus sibiricus Honeyweed

non-native
Annual, Perennial herb

2012 Zoya Akulova

Lepidium heterophyllum Purpleanther field pepperweed, Variable leaved pepper grass, Variable leaved pepperwort

non-native
Annual herb

2023 Emily R. Allen

Lepidium latipes var. heckardii Heckard's pepper grass, Heckard's pepperweed

• rare native
Annual herb

2009 Vernon Smith

2023 Justin Chappelle

2018 Jennifer Buck

Lepidium ramosissimum Manybranched pepperweed

native
Perennial herb

Lepidium sativum Gardencress pepperweed

non-native
Annual herb

2018 Dr. Mark S. Brunell

Lepidium thurberi Thurber's pepper grass, Thurber's pepperweed

native
Annual herb

2019 John Doyen

2012 Robert Sivinski

Lepidium virginicum ssp. menziesii Robinson's pepper grass

native
Annual herb

2011 Ramona Robison

2018 Al Keuter

Leptochloa dubia Green sprangletop

non-native
Perennial grass

2020 Toutcha Lebgue-Keleng

Leptochloa panicea ssp. brachiata Mucronate sprangeltop

native
Annual grass

Leptochloa viscida Sticky sprangletop

native
Annual grass

Leptosiphon chrysanthus

native
Perennial herb

2005 Keir Morse

2023 Bob Steele

Leptosiphon ciliatus ssp. neglectus Whiskerbrush

native
Annual herb

2018 Michelle Tollett

Leptosiphon minimus True babystars

native
Annual herb

2016 Keir Morse

Leptosiphon nudatus Tehachapi linanthus

native
Annual herb

2023 Ryan O'Dell

2003 Yulan Tong

2023 Ryan O'Dell

Leptosiphon pygmaeus ssp. pygmaeus Pygmy leptosiphon

• rare native
Annual herb

2008 Kim M. Klementowski

Leptosiphon serrulatus Madera leptosiphon

• rare native
Annual herb

2008 Chris Winchell

Lessingia glandulifera var. peirsonii Peirson's lessingia

native
Annual herb

2015 Dana York

2009 Neal Kramer

Leucanthemum lacustre Portuguese daisy

non-native
Perennial herb

Leucophyllum frutescens Texas barometer bush

non-native
Shrub

2011 Debra L. Cook

2010 Neal Kramer

Lewisia brachycalyx Short sepaled lewisia, Shortsepal lewisia

• rare native
Perennial herb

2023 Ryan O'Dell

Lewisia columbiana Columbia lewisia, Columbian lewisia

native
Perennial herb

2008 Matt Below

2007 Matt Below

Lewisia oppositifolia Opposite leaved lewisia, Oppositeleaf lewisia

• rare native
Perennial herb

2011 John Doyen

Lewisia Xwhiteae

native
Perennial herb

2021 James Wanket

2012 Jason Reilly

Leycesteria formosa Himalayan honeysuckle

non-native
Shrub

2009 Phil Pullen

Leymus salinus Saline wildrye

native
Perennial grass

Leymus simplex Alkali wildrye

native
Perennial grass

Libertia formosa Showy libertia, Snowy mermaid

non-native
Perennial herb

Lilaeopsis occidentalis Lilaeopsis, Western grasswort, Western lilaeopsis

native
Perennial herb

2005 Doreen L. Smith

2018 Vernon Smith

Lilium pardalinum ssp. pitkinense Pitkin marsh lily

• rare native
Perennial herb (bulb)

2011 Vernon Smith

2015 Aaron Arthur

Limnanthes alba ssp. parishii Parish's meadowfoam

• rare native
Annual herb

Roxanne Bittman and CNPS

Limnanthes floccosa ssp. bellingeriana Bellinger's meadowfoam, Woolly meadowfoam

• rare native
Annual herb

2013 Scot Loring

1988 Dean Wm. Taylor

Limnanthes vinculans Sebastopol meadowfoam

• rare native
Annual herb

2023 Austin keene

Limnophila Xludoviciana

non-native
Perennial herb

Limonium arborescens Bush sealavender, Tree limonium

non-native
Perennial herb

Limonium brassicifolium

non-native
Perennial herb

Limonium otolepis Asian sea lavender, Saltmarsh sealavender

non-native
Perennial herb

2022 James Bailey

Limonium preauxii

non-native
Perennial herb

Linanthus bernardinus Pioneertown linanthus

• rare native
Annual herb

2013 Duncan S. Bell

Linanthus californicus ssp. tomentosus fuzzy prickly-phlox

• rare native
Shrub

2011 Chris Winchell

Linaria bipartita Clovenlip toadflax, Split lip toadflax

non-native
Annual herb

1995 Saint Mary's College of California

Linaria genistifolia Broomleaf toadflax

non-native
Perennial herb

2010 Ron Wolf

2006 Steven Thorsted

Linaria purpurea Purple toad flax, Purple toadflax

non-native
Perennial herb

2014 Zoya Akulova

Lipocarpha aristulata Awned halfchaff sedge, Pointed hemicarpha

native
Annual grasslike herb

2020 Belinda Lo

2004 Steve Matson

Lipocarpha occidentalis Western halfchaff sedge, Western hemicarpha

native
Annual grasslike herb

2004 Steve Matson

Liriodendron tulipifera Tuliptree

non-native
Tree

MAGNOLIACEAE

2008 Gary W. Sargent

2005 Louis-M. Landry

Lithospermum incisum Narrowleaf gromwell, Narrowleaf stoneseed

• rare native
Perennial herb

2005 James M. Andre

2010 Lee Dittmann

Lithrea molleoides Aroeira blanca

non-native
Perennial herb

ANACARDIACEAE

Loeflingia squarrosa var. artemisiarum Sagebrush loeflingia

• rare native
Annual herb

2010 Jim Morefield

2016 Jim Morefield

Logfia arizonica Arizona cottonrose

native
Annual herb

2010 Gary A. Monroe

2010 James Morefield

Lolium rigidum Rigid italian rye grass, Wimmera ryegrass

non-native
Annual grass

2018 Tim Buonaccorsi

2023 Fidel Garcia Cova

Lomatium austiniae Plummer's lomatium

native
Perennial herb

2009 Gary A. Monroe

2012 Gary A. Monroe

Lomatium bicolor Wasatch desertparsley

native
Perennial herb

2015 Trent M. Draper

2015 Sierra Pacific Industries

Lomatium canbyi Canby's biscuitroot, Canby's lomatium

• rare native
Perennial herb

2011 Mary Winter

2002 Gary A. Monroe

Lomatium dasycarpum ssp. tomentosum Woolly fruited lomatium, Woollyfruit desertparsley

native
Perennial herb

2023 Alaine Arslan

2019 Julie Kierstead Nelson

Lomatium dissectum var. dissectum Fern leaved lomatium, Fernleaf biscuitroot

native
Perennial herb

2007 Keir Morse

Lomatium foeniculaceum ssp. macdougalii Macdougal's lomatium

• rare native
Perennial herb

2023 Ryan O'Dell

2011 Robert Sivinski

2010 Bill Harnach

Lomatium grayi Gray's lomatium

• rare native
Perennial herb

2008 Trent M. Draper

Lomatium hallii Hall's lomatium

native
Perennial herb

2009 Chris Wagner

2008 Keir Morse

Lomatium howellii Howell's biscuitroot, Howell's lomatium

• rare native
Perennial herb

2008 Keir Morse

2018 Claire Brown

Lomatium insulare San Nicholas biscuitroot, San Nicolas island lomatium

• rare native
Perennial herb

2011 Vince Scheidt

2016 Adam Searcy

Lomatium martindalei Cascade desertparsley, Coast range lomatium

• rare native
Perennial herb

2015 John Doyen

2010 Keir Morse

2007 Matt Below

Lomatium multifidum Fern leaved lomatium

native
Perennial herb

2008 Trent M. Draper

2013 Barry Breckling

2014 John Doyen

Lomatium piperi Indian biscuitroot, Piper's lomatium

native
Perennial herb

2011 Vernon Smith

2022 Alaine Arslan

2009 John Dittes

Lomatium ravenii var. ravenii Raven's lomatium

• rare native
Perennial herb

2021 Sarah Tona

Lomatium roseanum Biscuitroot

• rare native
Perennial herb

2012 Dean Wm. Taylor, Ph.D.

Lonicera cauriana Blue fly honeysuckle, Sweet berry honeysuckle

native
Shrub

2008 Barry Breckling

2022 Cheryl Beyer

2010 Keir Morse

Lonicera etrusca Etruscan honeysuckle, Honeysuckle

non-native
Vine, Shrub

2007 Luigi Rignanese

2006 Dr. Amadej Trnkoczy

Lonicera tatarica Tatarian honeysuckle

non-native
Shrub

2003 Joseph Dougherty/ecology.org

2005 Louis-M. Landry

Lotus uliginosus Marsh lotus

non-native
Perennial herb

2006 Doreen L. Smith

2009 Phil Pullen

Ludwigia grandiflora Large-flowered primrose-willow

non-native
Perennial herb

2023 Brit Barnes

2000 Joe DiTomaso

2023 Brit Barnes

Luma apiculata Temu

non-native
Tree, Shrub

2016 Zoya Akulova

Lupinus adsurgens var. adsurgens Drew's silky lupine

native
Perennial herb

2020 Richard Spjut

Lupinus albicaulis var. shastensis Shasta lupine

native
Perennial herb

2019 Jane Cohn

Lupinus albifrons var. johnstonii interior bush lupine

• rare native
Perennial herb

2019 dora black

Lupinus albus white lupine

non-native
Annual herb

Lupinus antoninus Anthony peak lupine

• rare native
Perennial herb

2018 John Doyen

Rick York and CNPS

Lupinus breweri var. parvulus Matted lupine

native
Perennial herb

Lupinus citrinus var. deflexus Mariposa lupine, Orangeflower lupine

• rare native
Annual herb

2009 Michael Osborne

Lupinus croceus var. pilosellus Mt. eddy lupine, Saffron flowered lupine

• rare native
Perennial herb

2022 Julie A. Kierstead

Lupinus elatus Tall silky lupine

• rare native
Perennial herb

2003 Christopher L. Christie

2003 Michael Charters

Lupinus elmeri Elmer's lupine

• rare native
Perennial herb

2010 Sangeet Khalsa

2017 Belinda Lo

Lupinus gracilentus Green slender lupine

• rare native
Perennial herb

Lupinus guadalupensis Guadalupe island lupine

• rare native
Annual herb

2011 Neal Kramer

2008 Kim M. Klementowski

Lupinus holmgrenianus Holmgren's lupine

• rare native
Perennial herb

2011 Shannon Henke

Lupinus latifolius var. barbatus Hair tuft lupine

• rare native
Perennial herb

Lupinus lepidus var. aridus

native
perennial herb

2018 Trent M. Draper

Lupinus magnificus var. glarecola Coso mtns. lupine, Panamint mountain lupine

• rare native
Perennial herb

Gerald and Buff Corsi 2013 California Academy of Sciences

Lupinus magnificus var. hesperius Mcgee meadows lupine, Panamint mountain lupine

• rare native
Perennial herb

2022 Dana York

Lupinus milo-bakeri Milo baker's lupine

• rare native
Annual herb

Jo-Ann Ordano 2000 California Academy of Sciences

1965 California Native Plant Society

1995 Saint Mary's College of California

Lupinus odoratus var. odoratus Mojave lupine

native
Annual herb

2023 Ryan O'Dell

Lupinus odoratus var. pilosellus Mojave lupine, Mojave royal lupine

native
Annual herb

Lupinus polyphyllus var. pallidipes Meadow lupine

native
Perennial herb

2022 John Rawlings

2019 Greg Kareofelas

2019 Jonathan Lee

Lupinus polyphyllus var. saxosus

native
perennial herb

2018 John Doyen

Lupinus pratensis var. eriostachyus Hairy bannered inyo meadow lupine

native
Perennial herb

Lupinus sparsiflorus ssp. inopinatus Coulter's lupine

native
Annual herb

Lupinus sparsiflorus ssp. mohavensis Mojave lupine

native
Annual herb

1997 Christopher L. Christie

Lupinus tracyi Tracy's lupine

• rare native
Perennial herb

2015 Dana York

2003 Norman Jensen

Lupinus uncialis inchhigh lupine, Lilliput lupine, Inch high lupine

• rare native
Annual herb

2023 Steve Matson

Luzula glabrata Smooth woodrush

non-native
Perennial grasslike herb

Luzula multiflora Common woodrush

native
Perennial grasslike herb

2008 Keir Morse

Luzula piperi Piper's woodrush

native
Perennial grasslike herb

2018 Susan McDougall

Lycium exsertum Arizona desert-thorn

• rare native
Shrub

Lycium ferocissimum African boxthorn

non-native
Shrub

2011 Aaron Arthur

Lycium torreyi Torrey's box thorn

• rare native
Shrub

2017 Wynn Anderson

2013 Wynn Anderson

2018 Wynn Anderson

Lycium verrucosum San nicholas desert thorn, San nicolas island desert thorn, San nicolas thorn

• rare native
Shrub

Lycopersicon peruvianum Wild tomato

non-native
Annual, Perennial herb

Lysimachia europaea Arctic starflower

• rare native
Perennial herb

MYRSINACEAE

2017 Barry Rice

2014 Wynn Anderson

Lysimachia nummularia Creeping jenny, Moneywort

non-native
Perennial herb

MYRSINACEAE

2005 Louis-M. Landry

Lysimachia thyrsiflora Tufted loosestrife, Tufted yellow loosestrife

• rare native
Perennial herb

MYRSINACEAE

2016 Keir Morse

2011 Sierra Pacific Industries

2016 Keir Morse

Macfadyena unguis-cati Catclawvine

non-native
Tree

BIGNONIACEAE

2020 Jean Pawek

Machaeranthera tanacetifolia Tanseyleaf tansyaster, Tansy leaved aster

native
Annual herb

2005 James M. Andre

2012 Richard Spellenberg

Madia citrigracilis Shasta tarweed

native
Annual herb

2011 Dan Shimmon

Madia subspicata Slender tarweed

native
Annual herb

2016 Steve Matson

Malacothamnus clementinus San Clemente Island bushmallow

• rare native
Shrub

2011 Dylan Neubauer

2011 Michelle Cloud-Hughes

2011 Dylan Neubauer

Malacothamnus fasciculatus var. nesioticus Santa Cruz Island bushmallow

• rare native
Shrub

Malacothamnus fasciculatus var. nesioticus

2014 Steve Matson

2022 Kyle Suchy

2014 Steve Matson

Malacothamnus mendocinensis Mendocino bushmallow

• rare native
Shrub

2023 Jim Xerogeanes

2021 Keir Morse

Malacothamnus palmeri var. palmeri Palmer's bushmallow, Cambria bushmallow

• rare native
Shrub

2012 Chris Winchell

2017 Keir Morse

Malacothamnus parishii Parish's bushmallow

• rare native
Shrub

2024 Ron Vanderhoff

Malacothrix foliosa Leafy desertdandelion, Leafy malacothrix

native
Annual herb

2011 Dylan Neubauer

2011 Neal Kramer

Malacothrix foliosa ssp. crispifolia Petite desertdandelion

• rare native
Annual herb

Malacothrix foliosa ssp. foliosa Leafy desertdandelion

• rare native
Annual herb

2011 Dylan Neubauer

2011 Neal Kramer

Malacothrix foliosa ssp. philbrickii Philbrick's desertdandelion

• rare native
Annual herb

Malacothrix foliosa ssp. polycephala Manyhead desertdandelion

• rare native
Annual herb

2012 Gary A. Monroe

Malacothrix indecora Santa cruz island cliff aster, Santa cruz island desertdandelion, Santa cruz island malacothrix

• rare native
Annual herb

2002 Dieter Wilken

Malacothrix junakii Junak's desertdandelion

• rare native
Annual herb

Malacothrix similis Mexican malacothrix, Twin desertdandelion

• rare native
Annual herb

Malacothrix squalida Island malacothrix, Santa cruz desertdandelion

• rare native
Annual herb

Malacothrix torreyi Torrey's desertdandelion, Torrey's malacothrix

native
Annual herb

2023 Steve Matson

Malaxis monophyllos

native
Perennial herb (bulb)

2007 Dr. Amadej Trnkoczy

2013 Raymond Prothero

2007 Dr. Amadej Trnkoczy

Malaxis monophyllos var. brachypoda White bog adder's-mouth

• rare native
Perennial herb (bulb)

2012 Duncan S. Bell

2016 Adrienne Simmons

Malcolmia graeca

non-native
Annual herb

Malva moschata Musk mallow

non-native
Annual, Perennial herb

2005 Louis-M. Landry

Malva verticillata Cluster mallow

non-native
Annual herb

2018 Zoya Akulova

Malva verticillata var. crispa Crisped mallow, curled mallow

non-native
Annual herb

Mammillaria grahamii Graham's nipple cactus

native
Shrub (stem succulent)

2005 Gene Wagner, RPh.

2008 Christopher L. Christie

2016 Jason Matthias Mills

Mammillaria grahamii var. grahamii Graham's fishhook cactus

• rare native
Shrub (stem succulent)

2008 Christopher L. Christie

Marina orcuttii Sonoran false prairie clover

native
Perennial herb

2008 Jordan Zylstra

2013 Keir Morse

Marina orcuttii var. orcuttii California marina

• rare native
Perennial herb

2013 Keir Morse

Matthiola longipetala Night scented stock

non-native
Perennial herb

Maurandella antirrhiniflora Roving sailor

• rare native
Perennial herb

2010 James M. Andre

2003 Charles E. Jones

2019 Belinda Lo

Maytenus magellanica Magellan's mayten

non-native
Tree, Shrub

CELASTRACEAE

2010 Dean Wm. Taylor, Ph.D

Medicago orbicularis Blackdisk medick, Buttonclover, Round leafed medick

non-native
Annual herb

2007 Luigi Rignanese

Medicago praecox Mediterranean medick

non-native
Annual herb

2012 Jean Pawek

2022 David popp

2012 Jean Pawek

Medicago rigidula Tifton medick, tifton burclover

non-native
Annual herb

Medicago scutellata Snail medick

non-native
Annual herb

2007 Luigi Rignanese

Meesia longiseta Long seta hump moss

• rare native
Moss

MEESIACEAE

Meesia triquetra Meesia moss

• rare native
Moss

MEESIACEAE

2008 Steve Matson

Meesia uliginosa Meesia moss

• rare native
Moss

MEESIACEAE

2013 Scot Loring

2006 Chris Wagner

Melampodium perfoliatum Perfoliate blackfoot

non-native
Annual herb

2016 Wynn Anderson

Melica frutescens Heligrass, Tall melica, Woody melicgrass

native
Perennial grass

2012 Keir Morse

2022 Neal Kramer

2012 Keir Morse

Melica fugax Little oniongrass, Small melic, Small onion grass

native
Perennial grass

2023 Matt Berger

Melica spectabilis Purple onion grass, Purple oniongrass

• rare native
Perennial grass (rhizomatous)

2009 Trent M. Draper

2011 Steve Matson

Menodora scabra Rough desert olive, Rough menodora

native
Shrub

2005 James M. Andre

2004 James M. Andre

2010 Lee Dittmann

Menodora scabra var. glabrescens Broom tvinberry, Desert olive

native
Perennial herb

2005 James M. Andre

2011 Gina Richmond

Menodora scabra var. scabra Rough desert olive

• rare native
Shrub

2012 James M. Andre

Mentha longifolia

non-native
Perennial herb

Mentha Xgracilis Scotch spearmint

non-native
Perennial herb

Mentha Xrotundifolia Apple mint

non-native
Perennial herb

2012 Andrea Williams

Mentha Xsmithiana Redstem mint

non-native
Perennial herb

Mentha Xvillosa

non-native
Perennial herb

Mentzelia jonesii Jones' blazing star, Jones' blazingstar

native
Annual herb, Vine

2014 Keir Morse

Mentzelia monoensis Mono craters blazing star

• rare native
Annual herb

2021 Ryan O'Dell

Mentzelia multiflora Adonis blazingstar

native
Perennial herb

2010 Ron Wolf

2016 Wynn Anderson

Mentzelia obscura Pacific blazing star, Pacific blazingstar

native
Annual herb

2014 John Doyen

2016 Steven Thorsted

2012 James M. Andre

Mentzelia polita Elegant blazing star, Polished blazingstar

• rare native
Annual herb

2010 James M. Andre

2008 Steve Matson

2010 James M. Andre

Mentzelia pterosperma Wing seed blazing star, Wingseed blazingstar

• rare native
Annual herb

2006 Trent M. Draper

Mertensia cusickii Toiyabe bluebells

• rare native
Perennial herb

Mertensia franciscana Franciscan bluebells

native
Perennial herb

Gerald and Buff Corsi 2007 California Academy of Sciences

2006 Robert Sivinski

Mertensia longiflora Long flower bluebells, Small bluebells

• rare native
Perennial herb

2005 Christopher L. Christie

2009 Matt Below

2020 Susan McDougall

Mertensia oblongifolia var. amoena Sagebrush bluebells

• rare native
Perennial herb

Mertensia oblongifolia var. oblongifolia Sagebrush bluebells

• rare native
Perennial herb

Micromonolepis pusilla Dwarf monolepis

• rare native
Annual herb

1998 Dan Post

2007 Steve Matson

Micropus californicus var. subvestitus Hairy slender cottonweed, Q tips

native
Annual herb

2023 Keir Morse

Microseris borealis Apargidium, Bog microseris, Northern microseris

• rare native
Perennial herb

Gerald and Buff Corsi 2013 California Academy of Sciences

2014 Wynn Anderson

Microseris elegans Elegant silverpuffs

native
Annual herb

2011 Zoya Akulova

null

2004 Laura Ann Eliassen

Microseris laciniata ssp. siskiyouensis Siskiyou microseris

native
Perennial herb

2023 Dana York

Mielichhoferia elongata Elongate copper moss

• rare native
Moss

2012 John Game

2012 calbryos group

Mielichhoferia mielichhoferiana Mielichhof's copper moss

• rare native
Moss

Mielichhoferia shevockii Shevock's copper moss

• rare native
Moss

MIELICHHOFERIACEAE

2017 John Game

Mielichhoferia tehamensis Tehama copper moss

native
Moss

Mimulus cusickii Cusick's monkeyflower

native
Annual herb

2007 John Game

2001 Steve Schoenig

Mimulus glabratus Roundleaf monkeyflower

native
Perennial herb (rhizomatous)

2016 Keir Morse

Mimulus ringens Allegheny monkeyflower, Typical monkeyflower

native
Perennial herb

2006 Louis-M. Landry

2016 Keir Morse

2010 Louis-M. Landry

Mimulus subsecundus One sided monkeyflower, Onesided monkeyflower

• rare native
Annual herb

2009 Barry Breckling

Minuartia stricta Bog stitchwort, Granite sandwort

native
Perennial herb

2016 Steve Matson

Mirabilis albida Dwarf four o'clock

native
Perennial herb

2009 James M. Andre

2015 Barry Breckling

2006 Chris Wagner, SBNF

Mirabilis coccinea Red four o'clock, Scarlet four o'clock

• rare native
Perennial herb

2005 James M. Andre

2014 Aaron Schusteff

Mirabilis linearis Narrow leaf four o'clock, Narrowleaf four o'clock

non-native
Perennial herb

2014 John Doyen

2015 Barry Breckling

Mirabilis linearis var. linearis Narrow leaf four o'clock

non-native
Perennial herb

Mirabilis nyctaginea Heart leaf four o'clock, Heartleaf four o'clock

non-native
Perennial herb

2011 RT Hawke

Mobergia calculiformis Light gray lichen

• rare native
Lichen

PHYSCIACEAE

Moluccella laevis Shell flower, Shellflower

non-native
Annual herb

2005 Louis-M. Landry

Monarda citriodora Lemon beebalm

non-native
Annual, Biennial, Perennial herb

2008 Ron Thomas

Monarda pectinata Bee balm, Pony beebalm

• rare native
Annual herb

2013 Trent M. Draper

Monardella antonina ssp. antonina San antonio hills monardella

• rare native
Perennial herb (rhizomatous)

2009 Keir Morse

2012 Gary McDonald

2006 Dr. Mark S. Brunell

Monardella antonina ssp. benitensis San Benito monardella

• rare native
Perennial herb (rhizomatous)

2021 Ryan O'Dell

Monardella boydii Boyd's monardella

• rare native
Annual herb

Monardella breweri ssp. glandulifera Brewer's monardella

native
Annual herb

Monardella breweri ssp. microcephala Brewer's monardella

native
Annual herb

Monardella eremicola Clark mountain monardella

• rare native
Annual herb

Monardella leucocephala Merced monardella

• rare native
Annual herb

2020 Hannah Kang

Monardella linoides ssp. anemonoides Narrow leaved monardella

native
Perennial herb

Monardella linoides ssp. linoides Flax like monardella, Flaxleaf monardella

native
Perennial herb

2012 Keir Morse

Monardella linoides ssp. oblonga Flax like monardella, Flaxleaf monardella

• rare native
Perennial herb (rhizomatous)

2011 Keir Morse

Monardella macrantha ssp. macrantha Hummingbird monardella, Red monardella

native
Perennial herb

2016 Scott Yarger

2012 Terrence Gosliner

2014 Aaron Schusteff

Monardella mojavensis

native
Annual herb

Monardella nana ssp. leptosiphon San felipe monardella

• rare native
Perennial herb (rhizomatous)

Monardella odoratissima ssp. odoratissima Mountain monardella

native
Perennial herb

Monardella odoratissima ssp. odoratissima

2009 Keir Morse

Monardella palmeri Palmer's monardella

• rare native
Perennial herb (rhizomatous)

2001 CDFA

2012 Chris Winchell

Monardella pringlei Pringle's monardella

• rare native
Annual herb

Monardella robisonii Robison's monardella, Rock pennyroyal

• rare native
Perennial herb (rhizomatous)

2008 James Andre

Monardella saxicola Rock monardella

• rare native
Subshrub

2004 Naomi Fraga

Monardella sinuata ssp. gerryi Gerry's curly-leaved monardella

• rare native
Annual herb

Monardella stoneana Jennifer's monardella

• rare native
Perennial herb

2010 Anna Bennett

Monardella undulata ssp. arguelloensis Curly leaved monardella

• rare native
Annual herb

2012 CNPS, San Luis Obispo Chapter

Monardella undulata ssp. undulata San luis obispo monardella

• rare native
Annual herb

2012 Terrence Gosliner

2012 John Sayers

1972 California Native Plant Society

Monardella viminea Willowy monardella

• rare native
Perennial herb

2015 Keir Morse

2011 Anna Bennett

2011 CNPS, San Luis Obispo Chapter

Monolepis spathulata Beaver monolepis, Beaver povertyweed

native
Annual herb

Moraea collina Cape tulip

non-native
Perennial herb

Moraea polystachya Blue tulip

non-native
Perennial herb

Muhlenbergia alopecuroides Wolftail

native
Perennial grass

Muhlenbergia andina Foxtail muhly

native
Perennial grass

2002 Steve Matson

2004 Steve Matson

2008 Keir Morse

Muhlenbergia arsenei Navajo muhly, Tough muhly

• rare native
Perennial grass (rhizomatous)

2011 Steve Matson

Muhlenbergia californica California muhly

• rare native
Perennial grass (rhizomatous)

2011 Steve Matson

2021 Joy England

Muhlenbergia fragilis Delicate muhly

• rare native
Annual grass

2011 Steve Matson

Muhlenbergia glauca Desert muhly

native
Perennial grass

Muhlenbergia jonesii Jones' muhly, Modoc muhly

• rare native
Perennial grass

2023 Matt Berger

2011 Steve Matson

2023 Matt Berger

Muhlenbergia minutissima Annual muhly

native
Annual grass

2011 Keir Morse

Muhlenbergia pauciflora Few flowered muhly, New mexico muhly

• rare native
Perennial grass (rhizomatous)

2011 Keir Morse

Muhlenbergia porteri Bush muhly, Porter's muhly

native
Perennial grass

2002 Dean Wm. Taylor

2004 James M. Andre

2005 James M. Andre

Muhlenbergia schreberi Nimblewell, Nimblewill

non-native
Perennial grass

2011 Steve Matson

Munroa squarrosa False buffalo grass

• rare native
Annual grass

2011 Keir Morse

Muntingia calabura Strawberrytree

non-native
Tree, Shrub

ELAEOCARPACEAE

2010 Moorea Biocode

Munzothamnus blairii Blair's wirelettuce

• rare native
Shrub

2011 Neal Kramer

2018 Susan McDougall

2011 Neal Kramer

Myosotis scorpioides True forget me not, Yelloweye forgetmenot

non-native
Perennial herb

2011 Jeff Abbas

2014 David popp

2011 Louis-M. Landry

Myosotis sylvatica Woodland forget me not

non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2011 Louis-M. Landry

Myosurus apetalus var. montanus Bristly mousetail

native
Annual herb

2023 Donald Burk

2017 Jim Morefield

2023 Donald Burk

Myosurus cupulatus Arizona mousetail, Desert mouse tail

native
Annual herb

2005 Keir Morse

Myriophyllum hippuroides Milfoil, Western milfoil, Western watermilfoil

native
Perennial herb (aquatic)

HALORAGACEAE

2002 Dean Wm. Taylor

2013 Jake Ruygt

Myriophyllum quitense Andean watermilfoil

native
Perennial herb (aquatic)

HALORAGACEAE

Myriopteris wootonii Wooton's lace fern

• rare native
Perennial herb

2010 James M. Andre

Myurella julacea Myurella moss

• rare native
Moss

PTERIGYNANDRACEAE

2013 Scot Loring

Najas gracillima Slender water nymph, Slender waternymph

non-native
Annual herb

Najas graminea Grass leaved water nymph, Ricefield waternymph

non-native
Annual herb

Najas minor Brittle Waternymph

native
Annual herb

2010 Cynthia Powell

Nama aretioides var. californica California Fiddleleaf

native
Annual herb

2021 Amelia Ryan

Nama densa var. parviflora Leafy Nama

native
Annual herb

2011 Gerald Carr

Nama depressa Narrow Leaf Nama

native
Annual herb

2014 Neal Kramer

2023 Bob Steele

2009 Jim Morefield

Nama dichotoma

native
Annual herb

Nama dichotoma var. dichotoma Forked purple mat

• rare native
Annual herb

2013 Don Davis

2011 James M. Andre

2011 Keir Morse

Nardia hiroshii Hiroshi's flapwort

• rare native
Liverwort

JUNGERMANNIACEAE

Nasturtium gambelii Gambel's yellowcress

• rare native
Perennial herb

2010 Chris Winchell

Navarretia aeroides

native
Annual herb

2017 Leigh Johnson

Navarretia crystallina Johnson's navarretia

native
Annual herb

2016 Leigh Johnson

2015 Aaron Schusteff

2015 Neal Kramer

Navarretia divaricata ssp. vividior Divaricate navarretia, Mountain navarretia

native
Annual herb

2008 Steve Matson

2014 John Doyen

2011 Aaron Schusteff

Navarretia eriocephala Hoary navarretia, Hoary pincushionplant

• rare native
Annual herb

2016 Steve Matson

Navarretia hamata ssp. leptantha Hooked navarretia, Hooked pincushionplant

native
Annual herb

2015 Keir Morse

Navarretia leucocephala ssp. pauciflora Few flowered navarretia, Fewflower navarretia

• rare native
Annual herb

2008 Steve Matson

2013 Jake Ruygt

Navarretia linearifolia ssp. linearifolia Navarretia

native
Annual herb

Navarretia linearifolia ssp. linearifolia

2019 Leigh Johnson

Navarretia linearifolia ssp. pinnatisecta Pinnate-leaved navarretia

• rare native
Annual herb

Navarretia linearifolia ssp. pinnatisecta

2021 Charles Russell

Navarretia miwukensis Gowen's navarretia

native
Annual herb

2016 Leigh Johnson

2016 Dean Wm. Taylor

Navarretia modocensis

native
Annual herb

2017 Leigh Johnson

Navarretia myersii Myers' pincushionplant, Pincushion navarretia

native
Annual herb

2003 Yulan Tong

2011 Charles Patterson

2005 John Game

Navarretia myersii ssp. deminuta Myer's navarretia, Myers' pincushionplant

• rare native
Annual herb

2020 Leigh Johnson

Navarretia myersii ssp. myersii Myers' pincushionplant

• rare native
Annual herb

2018 Doreen L. Smith

2005 Russell Huddleston

2003 Yulan Tong

Navarretia ojaiensis Ojai navarretia

• rare native
Annual herb

2008 Michael Charters

2013 Anuja Parikh and Nathan Gale

Navarretia paradoxiclara Navarretia

• rare native
Annual herb

2019 David Greenberger

2016 Leigh Johnson

Navarretia setiloba Paiute mountain pincushionplant, Piute mtns. navarretia

• rare native
Annual herb

2008 John Game

2008 Korey Klutz

Navarretia viscidula ssp. purpurea Sticky pincushionplant

native
Annual herb

2023 Lisa S Couper

Navarretia vividior Mountain navarretia

native
Annual herb

2011 Aaron Schusteff

2017 Leigh Johnson

Prosopis velutina Velvet mesquite

non-native
Shrub

Nelumbo lutea American lotus

non-native
Perennial herb

NELUMBONACEAE

2022 Donald Burk

Nemacaulis denudata var. gracilis Cottonheads, Slender woolly heads

• rare native
Annual herb

2010 Duncan S. Bell

2013 James M. Andre

2010 Duncan S. Bell

Nemacladus calcaratus Chimney creek nemacladus

• rare native
Annual herb

2018 Cheryl Birker

Nemacladus capillaris Common nemacladus, Common threadplant

native
Annual herb

2023 Mike Russler

2023 Ryan O'Dell

2019 Steven Perry

Nemacladus gracilis Slender nemacladus, Slender threadplant

• rare native
Annual herb

2010 Steve Matson

Nemacladus pinnatifidus Comb leaved nemacladus, Combleaf threadplant

native
Annual herb

2019 Keir Morse

Nemacladus secundiflorus var. secundiflorus Large-flowered nemacladus

• rare native
Annual herb

Nemacladus secundiflorus var. secundiflorus

2008 Aaron Schusteff

Nemacladus tenuis Desert nemacladus

native
Annual herb

2013 Keir Morse

Nemacladus tenuis var. aliformis

native
Annual herb

2013 Keir Morse

Nemacladus tenuis var. tenuis Desert nemacladus

native
Annual herb

2011 Dylan Neubauer

2010 Aaron Schusteff

Nemacladus twisselmannii Twisselmann's nemacladus, Twisselmann's threadplant

• rare native
Annual herb

2012 Keir Morse

Nemacladus twisselmannii var. botanywomaniae Botany Woman's Threadplant

native
Annual herb

Nemacladus twisselmannii var. botanywomaniae

2012 Keir Morse

Nemacladus twisselmannii var. twisselmannii Twisselmann's nemacladus

native
Annual herb

Nemacladus twisselmannii var. twisselmannii

2020 Keir Morse

Nemophila breviflora Basin nemophila, Great basin nemophila

• rare native
Annual herb

2011 RT Hawke

Nemophila pulchella var. gracilis Eastwood's baby blue eyes, Slender nemophila

native
Annual herb

Neostapfia colusana Colusa grass, Colusagrass

• rare native
Annual grass

2009 Doug Wirtz

2012 Aaron E. Sims

2023 Charles Russell

Nestotus stenophyllus Narrowleaf mock goldenweed

native
Perennial herb

2009 Matt Below

1998 Dan Post

Nicandra physalodes Apple of peru, Nicandra

non-native
Annual herb

2005 Louis-M. Landry

Nicotiana alata Flowering tobacco, Jasmine tobacco

non-native
Perennial herb

2007 Louis-M. Landry

2018 Sara Mandel

2018 Zoya Akulova

Nicotiana Xsanderae

non-native
Annual herb

Nitrophila mohavensis Amargosa niterwort, Amargosa nitrophila

• rare native
Perennial herb

2011 Duncan S. Bell

2016 Karen E. Tanner

2019 Cheryl Birker

Nolina bigelovii Bigelow's nolina

native
Perennial herb

RUSCACEAE

2005 James M. Andre

2018 Susan McDougall

Nothocalais troximoides False agoseris, Weevil prairie dandelion

native
Perennial herb

2018 Susan McDougall

2006 Steve Matson

2015 Richard Spellenberg

Notholaena californica ssp. leucophylla California cloak fern

native
Fern

Nymphaea alba European white waterlily

non-native
Perennial herb (aquatic)

NYMPHAEACEAE

2004 Doreen L. Smith

Nymphaea mexicana Mexican water lily, Yellow waterlily

non-native
Perennial herb

NYMPHAEACEAE

2013 Debra L. Cook

2003 Joseph Dougherty/ecology.org

Nymphaea odorata American white waterlily, Water lily

non-native
Perennial herb

NYMPHAEACEAE

2006 Joseph Dougherty/ecology.org

2006 Louis-M. Landry

Nymphoides peltata Water fringe, Yellow floatingheart

non-native
Perennial herb

MENYANTHACEAE

2011 Louis-M. Landry

2001 CDFA

Oenothera cavernae Cavedwelling evening primrose

• rare native
Perennial herb

2006 Arik Skromme

2008 Michael Charters

2008 James M. Andre

Oenothera caespitosa ssp. crinita Cespitose evening-primrose

• rare native
Perennial herb (rhizomatous)

2022 Ian Archer Winick

2017 Jim Morefield

2013 Martha Ashton-Sikora

Oenothera flava Yellow evening primrose

native
Perennial herb

2005 Steve Matson

2009 Trent M. Draper

Oenothera glazioviana Red sepaled evening primrose, Redsepal evening primrose

non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

Oenothera longissima Long evening primrose, Longstem evening primrose

• rare native
Perennial herb

2011 Ron Wolf

Oenothera mexicana Mexican evening primrose

non-native
Perennial herb

1995 Saint Mary's College of California

Oenothera pubescens Pubescent evening primrose, South american evening primrose

native
Perennial herb

2016 Wynn Anderson

Oenothera sinuosa Wavy-leaved gaura

non-native
Perennial herb

2009 Vince Scheidt

2001 CDFA

Oenothera stricta Chilean evening primrose

non-native
Perennial herb

Gerald and Buff Corsi 2013 California Academy of Sciences

Oenothera villosa ssp. strigosa Hairy evening primrose

native
Perennial herb

2012 Aaron Arthur

2014 Garth Wadsworth

2012 Aaron Arthur

Onobrychis viciifolia Sainfoin, Sanfoin

non-native
Perennial herb

2009 Mary Winter

2006 Luigi Rignanese

Ononis alopecuroides Foxtail restharrow

• invasive non-native
Annual herb

2018 Joe DiTomaso

Onopordum tauricum Bull cottonthistle, Taurian thistle

non-native
Perennial herb

2001 CDFA

Opuntia curvispina Curved-spine beavertail

native
Shrub (stem succulent)

Opuntia engelmannii var. engelmannii Cactus apple, Engelmann prickly pear

native
Shrub

2010 James M. Andre

2010 Zoya Akulova

2010 James M. Andre

Opuntia polyacantha var. hystricina Grizzlybear pricklypear

native
Shrub (stem succulent)

Gerald and Buff Corsi 2014 California Academy of Sciences

Opuntia wigginsii Wiggins' cholla, Wiggins's cholla

• rare native
Shrub (stem succulent)

2010 Thomas Stoughton

2004 James M. Andre

2010 Malia Volke

Opuntia Xcurvispina

native
Shrub (stem succulent)

Orcuttia californica California orcutt grass

• rare native
Annual grass

2005 Jasmine J. Watts

2013 Anna Bennett

2005 Russell Huddleston

Orcuttia pilosa Hairy orcutt grass

• rare native
Annual grass

2003 George W. Hartwell

2011 Steve Matson

2003 George W. Hartwell

Orcuttia viscida Sacramento orcutt grass

• rare native
Annual grass

2007 Carol W. Witham

2004 Carol W. Witham

Oreocarya roosiorum bristlecone cryptantha

• rare native
Perennial herb

2011 Steve Matson

Oreocarya sobolifera Creeping oreocarya, Waterton Lakes cryptantha

native
Perennial herb

2010 Keir Morse

2009 Keir Morse

2010 Julie Kierstead Nelson

Oreocarya tumulosa New York Mountains oreocarya

native
Perennial herb

2004 James M. Andre

2008 Steve Matson

2009 Lee Ripma

Oreostemma peirsonii Peirson's aster

native
Perennial herb

1995 Saint Mary's College of California

Ornithogalum umbellatum Sleepydick

non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2005 Louis-M. Landry

2006 Luigi Rignanese

Ornithopus pinnatus Pinnate leaved ornithopus, Yellow bird's foot

non-native
Annual, Perennial herb

Ornithopus sativus Bird's foot, Common bird's foot, Common ornithopus

non-native
Annual herb

Orobanche aegyptiaca Egyptian broomrape

• invasive non-native
Perennial herb (parasitic)

Orobanche ludoviciana var. arenosa Suksdorf's broom rape

• rare native
Perennial herb

Orobanche parishii ssp. brachyloba Parish's broomrape, Short lobed broom rape

• rare native
Perennial herb (parasitic)

2015 Paul Preston and Tim Lukaszewski

2015 Paul Preston

Orobanche valida ssp. howellii Howell's broomrape

• rare native
Perennial herb (parasitic)

1997 Dean Wm. Taylor

2013 Jake Ruygt

2011 Jake Ruygt

Orobanche valida ssp. valida Rock creek broomrape

• rare native
Perennial herb (parasitic)

1999 Alison Colwell

2010 California Academy of Sciences

Orthocarpus bracteosus Bracted owl's clover, Rosy owl's clover

native
Annual herb

2005 Norman Jensen

Orthocarpus cuspidatus ssp. cuspidatus Siskiyou mountain owl's clover, Siskiyou mtns. orthocarpus

• rare native
Annual herb

2002 Dan Post

2005 Chris Wagner

Orthotrichum holzingeri Holzinger's orthotrichum moss

• rare native
Moss

2014 calbryos group

2015 calbryos group

Orthotrichum kellmanii Kellman's bristle moss

• rare native
Moss

Orthotrichum shevockii Shevock's bristle moss

native
Moss

2014 calbryos group

Orthotrichum spjutii Spjut's bristle moss

• rare native
Moss

Osmorhiza depauperata Bluntseed sweetroot, Little sweet cicely

• rare native
Perennial herb

2011 Jean Pawek

1995 Saint Mary's College of California

Osmorhiza purpurea Purple sweet cicely, Purple sweetroot

native
Perennial herb

2014 Susan McDougall

2013 Steve Matson

Ottelia alismoides Duck lettuce, Ducklettuce

non-native
Perennial herb

1995 Saint Mary's College of California

2001 CDFA

Oxalis bowiei Red flower woodsorrel

non-native
Perennial herb

OXALIDACEAE

2021 C. Trillo

Oxalis latifolia Broadleaf woodsorrel, Mexican oxalis

non-native
Perennial herb

OXALIDACEAE

2001 CDFA

2006 Adonis (Don) Tate

2001 CDFA

Oxalis radicosa Dwarf woodsorrel

non-native
Annual herb

OXALIDACEAE

1995 Saint Mary's College of California

2019 Talila Golan

Oxytropis borealis var. australis Boreal locoweed

native
Perennial herb

2013 Steve Matson

Oxytropis oreophila Mountain oxytrope

native
Perennial herb

2009 Duncan S. Bell

2013 Jean Pawek

Oxytropis oreophila var. juniperina mountain oxytrope, Bicknell locoweed

• rare native
Perennial herb

2010 Lee Dittmann

Oxytropis oreophila var. oreophila Mountain oxytrope, Round leaf loco weed

• rare native
Perennial herb

2006 Trent M. Draper

Ozomelis diversifolia Angle leafed miterwort

native
Perennial herb

2021 Steve Matson

Ozomelis trifida Three parted miterwort

native
Perennial herb

2021 Dana York

Packera hesperia Western ragwort

• rare native
Perennial herb

2008 Keir Morse

Packera indecora Elegant groundsel, Rayless mountain ragwort

• rare native
Perennial herb

2013 Kirsten Bovee

Packera pseudaurea Falsegold groundsel

native
Perennial herb

2018 Susan McDougall

2007 Ram Vasudev

Packera pseudaurea var. pseudaurea Falsegold groundsel

native
Perennial herb

2018 Susan McDougall

Panicum acuminatum var. lindheimeri Lindheimer panicgrass, Pacific panic grass

native
Perennial grass

2011 Steve Matson

Panicum alatum Winged panicgrass

native
Annual grass

Panicum alatum var. minus Winged panicgrass

native
Annual grass

Panicum coloratum Kleingrass

non-native
Perennial grass

Panicum dichotomiflorum Fall panicgrass, Smooth witchgrass

non-native
Annual grass

2005 Adonis (Don) Tate

2011 Steve Matson

2005 Adonis (Don) Tate

Panicum dichotomiflorum ssp. dichotomiflorum Fall panic grass

non-native
Annual grass

Panicum dichotomiflorum ssp. dichotomiflorum

2011 Steve Matson

Panicum hillmanii Hillman's panicgrass

non-native
Annual grass

Panicum hirticaule Mexican panicgrass

native
Annual grass

2012 Keir Morse

Panicum hirticaule ssp. hirticaule Roughstalk witch grass

• rare native
Annual grass

2012 Keir Morse

Panicum miliaceum Broom corn millet, Broomcorn millet

non-native
Annual grass

2015 Nicholas Stevenson NPS

Panicum miliaceum ssp. miliaceum Broomcorn millet

non-native
Annual grass

2015 Nicholas Stevenson NPS

Panicum oligosanthes Heller's rosette grass

native
Annual grass

2011 Steve Matson (var. scribnerianum)

Panicum oligosanthes var. scribnerianum Scribner's rosette grass

native
Annual grass

2023 John Rawlings

2011 Steve Matson

Panicum rigidulum Redtop panicgrass

non-native
Perennial grass

Panicum rigidulum ssp. rigidulum Redtop panicum

non-native
Perennial grass

Panicum virgatum Switchgrass

non-native
Perennial grass

2010 Louis-M. Landry

Papaver dubium Blindeyes

non-native
Annual herb

2013 Zoya Akulova

Papaver hybridum Round pricklyhead poppy

non-native
Annual herb

2007 Luigi Rignanese

2006 Luigi Rignanese

2007 Luigi Rignanese

Parapholis strigosa Hairy sickle grass, Strigose sicklegrass

non-native
Annual grass

Parietaria hespera var. californica California pellitory

native
Annual herb

URTICACEAE

2003 Keir Morse

Parnassia cirrata var. cirrata San bernardino grass of parnassus

• rare native
Perennial herb

PARNASSIACEAE

2021 Aaron Echols

2021 Joy England

2021 Aaron Echols

Paronychia echinulata Eurasian nailwort

non-native
Annual herb

Paronychia echinulata var. echinulata Spiny paronychia

non-native
Annual herb

Paspalum notatum Bahia grass, Bahiagrass

non-native
Perennial grass

2001 CDFA

2010 Moorea Biocode

Paspalum notatum var. saurae Bahiagrass

non-native
Perennial grass

Passiflora manicata Red passionflower

non-native
Vine

PASSIFLORACEAE

2015 Zoya Akulova

Passiflora mixta Passionflower

non-native
Vine

PASSIFLORACEAE

Pectocarya peninsularis Baja pectocarya, Peninsular pectocarya

native
Annual herb

2003 Brent Miller

Pedicularis attollens ssp. attollens Little elephantshead

native
Perennial herb

2009 Gary A. Monroe

Pedicularis attollens ssp. protogyna Little elephantshead

native
Perennial herb

Pedicularis centranthera Dwarf lousewort

• rare native
Perennial herb

2009 Lee Dittmann

2012 Lee Dittmann

Pedicularis racemosa ssp. alba Leafy lousewort, Sickletop lousewort

native
Perennial herb

2015 Barry Breckling

2013 Trent M. Draper

Pedicularis rigginsiae Arroyo de la Cruz lousewort

• rare native
Perennial herb

2022 Paul Excoffier

Pediomelum castoreum Beaver indian breadroot

• rare native
Perennial herb

2005 James M. Andre

2011 Teague Embrey

Peganum harmala Harmal peganum

• invasive non-native
Perennial herb

NITRARIACEAE

2011 Debra L. Cook

2021 Caleb Cole

2001 CDFA

Pelargonium inquinans Scarlet geranium, South african pelargonium

non-native
Shrub (stem succulent)

Pelargonium panduriforme Oak leafed geranium, Oakleaf garden geranium

non-native
Shrub (stem succulent)

Pelargonium quercifolium Geranium, Oak leafed pelargonium, Oakleaf geranium

non-native
Shrub (stem succulent)

Pelargonium vitifolium Geranium, Grape leafed geranium, Grapeleaf geranium

non-native
Perennial herb

Jo-Ann Ordano 2000 California Academy of Sciences

2020 Jake Gifford

2008 Neal Kramer

Pelargonium Xdomesticum Regal pelargonium

non-native
Shrub (stem succulent)

2018 Zoya Akulova

2012 Zoya Akulova

Pelargonium zonale Garden geranium, Horseshoe geranium

non-native
Perennial herb, Shrub

Pellaea truncata Cliff brake, Spiny cliffbrake

• rare native
Fern (rhizomatous)

2011 Keir Morse

Pellaea Xglaciogena

native
Fern (rhizomatous)

Peltandra virginica Green arrow arum, Peltandra

non-native
Perennial herb

2010 Louis-M. Landry

Peltigera gowardii Western waterfan lichen

• rare native
Lichen

PELTIGERACEAE

2014 Eric B. Peterson

2018 Julie Kierstead Nelson

Peltigera pacifica fringed pelt

• rare native
Lichen

PELTIGERACEAE

2021 Scot Loring

2008 Chris Wagner

Pennisetum glaucum Pearl millet

non-native
Annual, Perennial grass

1999 Nick Kurzenko

2007 Louis-M. Landry

2008 Louis-M. Landry

Pennisetum latifolium Uruguayan fountaingrass

non-native
Perennial grass

2001 CDFA

Pennisetum macrourum African feathergrass

non-native
Perennial grass

Pennisetum nervosum Bentspike fountaingrass

non-native
Perennial grass

Pennisetum purpureum Elephant grass

non-native
Perennial grass

2018 Zoya Akulova

Penstemon barnebyi Barneby's beardtongue, White river valley beardtongue

• rare native
Perennial herb

2006 James M. Andre

Penstemon bicolor Pinto beardtongue, Two color beardtongue

native
Perennial herb

2004 James M. Andre

2006 James M. Andre

2004 James M. Andre

Penstemon bicolor ssp. roseus Pinto beardtongue

• rare native
Perennial herb

2006 Rich Crawford

2013 Cindy Hopkins

2013 Xeric Specialties

Penstemon clevelandii var. mohavensis Mohave beard's tongue, Mojave beardtongue

native
Perennial herb

2018 Lisa Schauer

Penstemon heterodoxus var. shastensis Shasta beardtongue

• rare native
Perennial herb

2014 Sierra Pacific Industries

2016 John Doyen

2009 Sierra Pacific Industries

Penstemon janishiae Antelope valley beardtongue

• rare native
Perennial herb

2005 Christopher L. Christie

2006 Gary A. Monroe

2018 Sierra Pacific Industries

Penstemon pahutensis Pahute beardtongue, Paiute beardtongue

• rare native
Perennial herb

Penstemon stephensii Stephen's penstemon, Stephens' penstemon, Stephens's beardtongue

• rare native
Perennial herb

2011 Shannon Henke

2011 Duncan S. Bell

2005 James M. Andre

Penstemon thompsoniae Thompson's beardtongue

• rare native
Perennial herb

2005 James M. Andre

2006 Trent M. Draper

2013 James M. Andre

Penstemon thurberi Thurber penstemon, Thurber's beardtongue, Thurber's penstemon

• rare native
Perennial herb

2005 Keir Morse

Penstemon venustus Venus penstemon

non-native
Shrub (stem succulent)

2005 Christopher L. Christie

2009 Gary A. Monroe

Penstemon Xdubius Hybrid penstemon

native
Perennial herb

Penstemon Xparishii Hybrid beardtongue

native
Perennial herb

2003 Michelle Cloud-Hughes

2002 Charles E. Jones

Penstemon Xpeirsonii

native
Perennial herb

Pentachaeta aurea ssp. aurea Golden chaetopappa

• rare native
Perennial herb

2013 Keir Morse

Pentachaeta exilis ssp. exilis Meager pygmydaisy, Slender pentachaeta

native
Annual herb

1998 Dean Wm. Taylor

2006 Laura Ann Eliassen

Pentagramma glanduloviscida

native
Fern

2013 Keir Morse

Pentagramma rebmanii

native
Fern

2014 Keir Morse

2017 Keir Morse

Pentagramma viscosa Sticky gold back fern

native
Fern

2014 Keir Morse

Pentameris airoides ssp. airoides False Hair-grass

non-native
Perennial grass

2016 Keir Morse

Pericallis hybrida Common ragwort

non-native
Annual, Perennial herb

Perideridia bacigalupii Bacigalupi's yampah, Mother lode yampah

• rare native
Perennial herb

2007 Chris Winchell

Perideridia bolanderi ssp. involucrata Bolander's yampah

native
Perennial herb

2022 David popp

Perideridia gairdneri ssp. borealis Common yampah, Northern gairdner's yampah

native
Perennial herb

2009 Trent M. Draper

Perideridia howellii Howell's yampah

native
Perennial herb

2010 Barry Breckling

2008 Chris Winchell

Perideridia parishii ssp. parishii Parish's yampah

• rare native
Perennial herb

2009 Thomas Stoughton

Perityle intricata Desert rock daisy

native
Perennial herb

Persicaria orientalis Kiss me over the garden gate

non-native
Annual herb

2010 Jean Pawek

Petalonyx nitidus Shiny leaf sandpaper plant, Shinyleaf sandpaper plant, sand paper plant

native
Perennial herb

2023 Dana York

2023 Duncan Bell

Peteria thompsoniae Spine noded milk vetch, Thompson's peteria

• rare native
Perennial herb

2013 Steve Matson

Petradoria pumila Rock goldenrod

native
Perennial herb

2014 Richard Spellenberg

2010 Aaron Schusteff

Petradoria pumila ssp. pumila Grassy rockgoldenrod, Rock goldenrod

• rare native
Perennial herb

2010 Aaron Schusteff

2005 James M. Andre

Petradoria pumila var. pumila Rock-goldenrod

native
Perennial herb

2005 James M. Andre

Petrorhagia nanteuilii Proliferous pink, Tubercle seeded pink grass

non-native
Annual herb

2005 George W. Hartwell

2007 Neal Kramer

Petroselinum crispum Parsley

non-native
Perennial herb

2010 Michael O'Brien

2008 Louis-M. Landry

2005 Luigi Rignanese

Petunia axillaris Large white petunia

non-native
Annual, Perennial herb

2007 Zoya Akulova

2013 Zoya Akulova

Petunia integrifolia Violetflower petunia

non-native
Annual, Perennial herb

Phacelia adenophora Glandular yellow phacelia

native
Annual herb

2008 Neal Kramer

2018 John Doyen

2009 Gary A. Monroe

Phacelia affinis Limestone phacelia, Purple bell phacelia

native
Annual herb

2023 Martin Schenker

2005 James M. Andre

2015 Keir Morse

Phacelia amabilis Saline valley phacelia

• rare native
Annual herb

Phacelia argentea Sand dune phacelia, Sanddune phacelia

• rare native
Perennial herb

2012 Genevieve K. Walden Using these photos: A variety of organization

2009 Genevieve K. Walden

2008 Genevieve K. Walden

Phacelia barnebyana Barneby's phacelia

• rare native
Annual herb

2023 Steve Matson

Phacelia ciliata var. opaca Great valley phacelia, Merced phacelia

• rare native
Annual herb

Phacelia floribunda Many flowered phacelia, Southern island phacelia

• rare native
Annual herb

2014 Dylan Neubauer

2011 Neal Kramer

2008 Kim M. Klementowski

Phacelia humilis var. dudleyi Dudley's phacelia

native
Annual herb

2023 Mary Merriman

2020 Barry Breckling

Phacelia imbricata var. bernardina Bernadina Phacelia

native
Annual herb

2022 R.A. Chasey

Phacelia inundata Playa phacelia, Playa yellow phacelia

• rare native
Annual herb

2008 F. Gauna

Phacelia ivesiana var. pediculoides Ives' phacelia

native
Annual herb

Phacelia ixodes Costa baja phacelia

native
Annual herb

Phacelia lemmonii Lemmon's phacelia

native
Annual herb

2006 Aaron Schusteff

2014 John Game

Phacelia malvifolia var. loasifolia Stinging phacelia

native
Annual herb

2018 Rebecca Schoenenberger

Phacelia parishii Parish's phacelia

• rare native
Annual herb

2006 James M. Andre

2004 Thomas M. Elder, M.D.

2023 Matt Berger

Phacelia stellaris Brand's phacelia, Star phacelia

• rare native
Annual herb

2012 Keir Morse

Phacelia tetramera Four parted phacelia, Fourpart phacelia

native
Annual herb

2022 Matt Berger

2023 Steve Matson

Phacelia thermalis Heat phacelia, Heated phacelia

native
Annual herb

2019 Amelia Ryan

2002 Dean Wm. Taylor

2019 Amelia Ryan

Phacelia umbrosa Colorado desert phacelia

native
Annual herb

Phalaris angusta Timothy canarygrass

native
Annual grass

2011 Steve Matson

Phalaris brachystachys Short spike canarygrass, Shortspike canarygrass

non-native
Annual grass

2023 John Rawlings

2007 Luigi Rignanese

Phalaris canariensis Annual canarygrass

non-native
Annual grass

2008 Louis-M. Landry

2007 Luigi Rignanese

Phalaris caroliniana Carolina canarygrass

non-native
Annual grass

2022 Chris McDonald

Phalaris coerulescens Sunolgrass

non-native
Perennial grass

Phelipanche ramosa Yellow broom rape

non-native
Perennial herb (parasitic)

2001 CDFA

2006 Luigi Rignanese

2007 Luigi Rignanese

Phlomis fruticosa Shrubby jerusalem sage

non-native
Perennial herb

2017 Zoya Akulova

2016 Barbara Boethling

Phlox caespitosa Tufted phlox

native
Perennial herb

2009 Debra Valov

2009 Barry Breckling

Phlox douglasii Douglas' phlox

native
Perennial herb

1995 Saint Mary's College of California

Phlox longifolia Longleaf phlox

native
Perennial herb

2005 Christopher L. Christie

2007 Trent M. Draper

Phlox muscoides Moss phlox

• rare native
Perennial herb

2002 California Native Plant Society

2013 Justy Leppert

2023 Dana York

Phlox pulvinata Carpet phlox, Cushion phlox, Pulvinate phlox

native
Perennial herb

Gerald and Buff Corsi 2000 California Academy of Sciences

2007 Neal Kramer

Phlox stansburyi ssp. stansburyi Cold-desert phlox

native
Perennial herb

2019 Catherine Capone

2015 Richard Spellenberg

2013 James M. Andre

Phlox stansburyi ssp. superba Cold-desert phlox

native
Perennial herb

2017 Jim Morefield

Phlox stansburyi var. brevifolia Cold-desert phlox

native
Perennial herb

2019 Jim Morefield

2024 Alaine Arslan

Phlox viridis Green phlox

native
Perennial herb

Phlox viridis ssp. longipes Green phlox

native
Perennial herb

Phryma leptostachya American lopseed

non-native
Perennial herb

2006 Jeff Abbas

Phyla cuneifolia Wedgeleaf

native
Perennial herb

2017 Trent M. Draper

Phyllanthus caroliniensis ssp. caroliniensis Carolina leaf flower

non-native
Annual herb

Phyllostachys bambusoides Japanese timber bamboo

non-native
Shrub

Physalis angulata Cutleaf groundcherry

native
Annual herb

2015 Barry Breckling

2008 John Dittes

2021 David popp

Physalis hederifolia var. fendleri Fendler's groundcherry, Fendler's ivy leaf tomatillo

native
Perennial herb

2016 Keir Morse

2005 James M. Andre

2004 Robert Sivinski

Physalis hederifolia var. hederifolia Ivyleaf groundcherry

native
Perennial herb

Physalis lanceifolia Narrow leaf tomatillo

non-native
Annual herb

2021 Ramona Robison

2019 Angelique Herman

Physalis peruviana Peruvian groundcherry

non-native
Perennial herb

2006 Louis-M. Landry

Physalis philadelphica var. immaculata Mexican groundcherry

non-native
Annual herb

2011 Louis-M. Landry

Physalis pubescens Husk tomato

non-native
Perennial herb

2014 Steven Harris

Physalis pubescens var. grisea Gray ground cherry

non-native
Annual herb

2014 Steven Harris

Physalis pubescens var. integrifolia Hairy ground cherry, Husk tomato

non-native
Perennial herb

2011 Louis-M. Landry

Physalis viscosa Grape ground cherry

non-native
Perennial herb

2007 Zoya Akulova

Physaria chambersii Chambers' twinpod, Double bladderpod

• rare native
Perennial herb

2006 Trent M. Draper

2010 Mary Winter

2014 Zoya Akulova

Physaria cordiformis

native
Perennial herb

Physaria kingii ssp. latifolia Limestone bladderpod

native
Perennial herb

2010 James M. Andre

2004 James M. Andre

Physaria ludoviciana Silver bladderpod

• rare native
Perennial herb

2016 Steve Matson

Physaria tenella Little bladderpod

native
Annual herb

2023 David Strauch

Picea abies Norway spruce

non-native
Tree

2006 Dr. Amadej Trnkoczy

Picea engelmannii Engelmann spruce

• rare native
Tree

2000 John Game

2004 Robert Sivinski

2003 Joseph Dougherty/ecology.org

Picea pungens Blue spruce

non-native
Tree

2003 Joseph Dougherty/ecology.org

2010 Lee Dittmann

Picradeniopsis multiflora Many flowered bahia

native
Annual herb

2011 Keir Morse

Pinellia ternata Crowdipper

non-native
Perennial herb

Pinus brutia var. eldarica Afghan pine

non-native
Tree

Pinus elliottii Slash pine

non-native
Tree

Lorraine Elrod2007 California Academy of Sciences

Pinus nigra Austrian pine

non-native
Tree

2006 Luigi Rignanese

2007 Louis-M. Landry

2005 Dr. Amadej Trnkoczy

Pinus ponderosa var. ponderosa North plateau ponderosa pine

native
Tree

2011 Wynn Anderson

2013 Susan McDougall

2002 Monty Rickard

Pinus ponderosa var. washoensis Washoe pine

native
Tree

2012 Gary A. Monroe

Pinus sylvestris Scotch pine

non-native
Tree

2007 Louis-M. Landry

Nick Kurzenko

2005 Louis-M. Landry

Pinus thunbergiana Japanese black pine

non-native
Tree

2021 Ron Vanderhoff

Pinus Xattenuradiata

native
Tree

Piperia elegans ssp. decurtata Elegant piperia

• rare native
Perennial herb

2023 Hunter Breck

Piptochaetium fuscum Bristly Speargrass

native
Perennial grass

Pisum sativum Garden pea

non-native
Annual herb

2015 Barry Breckling

2008 Louis-M. Landry

2011 Louis-M. Landry

Pityopus californica California pinefoot, Pityopus

native
Perennial herb (mycoparasitic)

2010 Sean B. Smith

Plagiobothrys canescens var. catalinensis Catalina popcornflower

native
Annual herb

Plagiobothrys canescens var. catalinensis

2016 Mary Merriman

Plagiobothrys collinus var. ursinus Cooper's popcornflower, Northern popcorn flower

native
Annual herb

Plagiobothrys cusickii Cusick's popcorn flower

native
Annual herb

2011 Steve Matson

Plagiobothrys distantiflorus California popcorn flower, California popcornflower

native
Annual herb

2005 Steve Matson

Plagiobothrys glaber Hairless popcorn flower, Hairless popcornflower

• rare native
Annual herb

2019 Dean Wm. Taylor

2011 Steve Matson

Plagiobothrys glyptocarpus var. glyptocarpus Sculptured allocarya, Sculptured popcornflower

native
Annual herb

Plagiobothrys glyptocarpus var. glyptocarpus

2009 George W. Hartwell

2005 Steve Matson

Plagiobothrys glyptocarpus var. modestus Cedar crest popcorn flower, Sculptured popcornflower

• rare native
Annual herb

Plagiobothrys glyptocarpus var. modestus

2020 Lilyanne Price

2022 Neal Kramer

Plagiobothrys hystriculus Bearded popcorn flower, Bearded popcornflower

• rare native
Annual herb

2023 Charles Russell

2007 Carol W. Witham

Plagiobothrys infectivus Dye popcorn flower, Dye popcornflower

native
Annual herb

2023 Jacob Smith

2023 Ryan O'Dell

Plagiobothrys leptocladus Alkali plagiobothrys, Finebranched popcornflower

native
Annual herb

2009 Doug Wirtz

2009 Anna Bennett

2004 Carol W. Witham

Plagiobothrys lithocaryus Mayacamas popcorn flower, Mayacamas popcornflower

• rare native
Annual herb

2011 Steve Matson

Plagiobothrys mollis var. mollis Downy popcorn flower, Soft popcornflower

native
Perennial herb

2001 Gary A. Monroe

2008 Steve Matson

Plagiobothrys mollis var. vestitus Petaluma popcorn flower, Soft popcornflower

• rare native
Perennial herb

Plagiobothrys nitens Shiny nutlet popcorn flower

• rare native
Perennial herb

2011 Steve Matson

Plagiobothrys reticulatus Netted popcornflower, Reticulate popcorn flower

native
Annual herb

2019 Lynn Overtree

2014 Dana York

Plagiobothrys reticulatus var. reticulatus Reticulate popcorn flower

native
Annual herb

Plagiobothrys reticulatus var. reticulatus

2014 Dana York

Plagiobothrys reticulatus var. rossianorum Fort ross allocarya

native
Annual herb

Plagiobothrys reticulatus var. rossianorum

2012 Vernon Smith

Plagiobothrys salsus Desert popcorn flower, Salty popcornflower

• rare native
Annual herb

2010 James M. Andre

2023 Matt C. Berger

Plagiobothrys strictus Calistoga popcorn flower, Calistoga popcornflower

• rare native
Annual herb

2014 Robert E. Preston, Ph.D.

2013 Jake Ruygt

2014 Robert E. Preston, Ph.D.

Plagiobothrys tener Slender allocarya, Slender popcorn flower, Slender popcornflower

native
Annual herb

2011 Steve Matson

Plagiobothrys tener var. subglaber Slender popcornflower

native
Annual herb

2011 Steve Matson

Plagiobothrys torreyi var. diffusus Torrey's popcornflower

native
Annual herb

2011 Steve Matson

Plagiobothrys torreyi var. perplexans Chaparral popcornflower

• rare native
Annual herb

2017 Neal Kramer

Plagiobothrys torreyi var. torreyi Torrey's popcorn flower, Torrey's popcornflower

• rare native
Annual herb

2011 Steve Matson

Plagiobothrys uncinatus Hooked popcorn flower, Salinas valley popcornflower

• rare native
Annual herb

2003 Keir Morse

2008 Keir Morse

2014 Jean Pawek

Plagiobothrys undulatus Coast allocarya

native
Annual herb

2012 Terrence Gosliner

2008 Neal Kramer

2006 Steve Matson

Plagiobothrys verrucosus Forget-me-not popcornflower

• rare native
Annual herb

2009 Chris Winchell

Plagiobryoides vinosula Wine-colored tufa moss

• rare native
Moss

Plantago aristata Bristly plantain, Largebracted plantain

non-native
Annual, Perennial herb

2015 Jordan Zylstra

Plantago eriopoda Hairy fruited plantain, Redwool plantain

native
Perennial herb

2011 Ryan Batten

Plantago heterophylla Slender plantain

non-native
Annual, Perennial herb

Plantago ovata var. insularis Desert plantain

native
Annual herb

2015 Keir Morse

Plantago pusilla Dwarf plantain, Little plantain

non-native
Annual herb

Plantago rhodosperma Redseed plantain, Virginia plantain

native
Annual, Perennial herb

2015 Keir Morse

Plantago truncata

non-native
Annual herb

Plantago truncata ssp. firma Chilean plantain

non-native
Annual herb

2008 Doreen L. Smith

2018 Vernon Smith

Plantago virginica Dwarf plantain, Virginia plantain

non-native
Annual, Perennial herb

2016 Neal Kramer

Platanthera huronensis

native
Perennial herb

2015 Barry Breckling

2016 Keir Morse

Platanthera stricta Slender bog orchid

• rare native
Perennial herb

2023 Dana York

Platanus orientalis Oriental planetree

non-native
Tree

PLATANACEAE

2016 Zoya Akulova

Platystemon californicus var. ciliatus Santa barbara island cream cups

• rare native
Annual herb

2010 Richard Spjut

Pleuraphis mutica Tobosagrass

native
Perennial grass

2018 Wynn Anderson

Pleuridium acuminatum Acuminate pleuridium moss

native
Moss

2013 Scot Loring

Pleuridium mexicanum Mexican pleuridium moss

• rare native
Moss

2012 John Game

Pleuridium subulatum Pleuridium moss

native
Moss

2013 calbryos group

2013 Scot Loring

2011 calbryos group

Poa abbreviata Short bluegrass

native
Perennial grass

Poa abbreviata ssp. marshii Marsh's blue grass, Marsh's bluegrass

• rare native
Perennial grass

Poa abbreviata ssp. pattersonii Patterson's blue grass

• rare native
Perennial grass

Poa atropurpurea San bernardino blue grass, San bernardino bluegrass

• rare native
Perennial grass (rhizomatous)

2009 Thomas Stoughton

2014 Jordan Zylstra

Poa bigelovii Bigelow's blue grass, Bigelow's bluegrass

native
Annual grass

2017 Keir Morse

Poa bolanderi Bolander's blue grass, Bolander's bluegrass

native
Annual grass

2014 Belinda Lo

Poa bulbosa ssp. bulbosa Bulbous blue grass

non-native
Perennial grass

2017 Svetlana Yegorova

Poa compressa Canada blue grass, Canada bluegrass

non-native
Perennial grass

2006 Louis-M. Landry

2015 David popp

2006 Louis-M. Landry

Poa cusickii ssp. cusickii Cusick's blue grass

native
Perennial grass

2019 John Rawlings

Poa diaboli Diablo canyon blue grass

• rare native
Perennial grass (rhizomatous)

Poa fendleriana Muttongrass

native
Perennial grass

2010 James M. Andre

2007 Trent M. Draper

2006 Trent M. Draper

Poa fendleriana ssp. fendleriana Muttongrass

native
Perennial grass

Poa fendleriana ssp. longiligula Fendler's blue grass, Muttongrass

native
Perennial grass

2007 Trent M. Draper

2006 Trent M. Draper

2007 Trent M. Draper

Poa infirma Weak blue grass, Weak bluegrass

non-native
Annual grass

2019 Zoya Akulova

Poa keckii Keck's blue grass, Keck's bluegrass

native
Perennial grass

2022 John Rawlings

2013 Kerry Heise

Poa kelloggii Kellogg's bluegrass, Redwood blue grass

native
Perennial grass

2021 Chris Brant

2022 John Rawlings

2023 Ellen Uhler

Poa lettermanii Letterman's blue grass, Letterman's bluegrass

• rare native
Perennial grass

Poa macrantha Large flowered sand dune blue grass, Seashore bluegrass

native
Perennial grass

2017 Steve Matson

Poa napensis Napa blue grass, Napa bluegrass

• rare native
Perennial grass

2018 Jake Ruygt

Poa nemoralis Wood blue grass, Wood bluegrass

non-native
Perennial grass

Poa piperi Piper's blue grass, Piper's bluegrass

• rare native
Perennial grass (rhizomatous)

2017 Dana York

Poa pringlei Pringle's blue grass, Pringle's bluegrass

native
Perennial grass

2020 David popp

Poa tenerrima Delicate blue grass, Delicate bluegrass

native
Perennial grass

Poa trivialis Rough blue grass, Rough bluegrass

non-native
Perennial grass

2006 Greta Murdoff

Pogogyne clareana Clare's pogogyne, Santa lucia mint

• rare native
Annual herb

1999 Dieter Wilken

2006 Aaron Schusteff

Pogogyne douglasii ssp. parviflora Douglas' mesamint, Douglas's pogogyne

native
Annual herb

1998 Dean Wm. Taylor

Pogogyne floribunda Profuse flowered pogogyne, Profuseflower mesamint

• rare native
Annual herb

1988 Dean Wm. Taylor

2010 Sierra Pacific Industries

Pogogyne nudiuscula Otay mesa mint, Otay mesamint, San diego pogogyne

• rare native
Annual herb

2010 Anna Bennett

2001 Greg Mason

Pohlia flexuosa Flexuose threadmoss

• rare native
Moss

MIELICHHOFERIACEAE

Pohlia tundrae Tundra pohlia moss

• rare native
Moss

Polemonium pulcherrimum var. pilosum White flowered polemonium, White flowered sky pilot

native
Perennial herb

2009 George W. Hartwell

2016 John Doyen

2018 Matt C. Berger

Poliomintha incana Frosted mint

• rare native
Shrub

Polyctenium fremontii Desert combleaf, Fremont's polyctenium

native
Perennial herb

2011 Steve Matson

2009 Steve Matson

Polygala acanthoclada Desert milkwort, Desert polygala, Milkwort

• rare native
Shrub

POLYGALACEAE

2011 Keir Morse

Polygala heterorhyncha Beaked spiny polygala, Notch beaked milkwort

• rare native
Perennial herb

POLYGALACEAE

2006 James M. Andre

Polygala intermontana Great basin milkwort, Intermountain milkwort

• rare native
Perennial herb, Shrub

POLYGALACEAE

2017 Jim Morefield

Polygonum aviculare ssp. buxiforme Prostrate knotweed

non-native
Annual, Perennial herb

Polygonum aviculare ssp. neglectum Prostrate knotweed

non-native
Annual, Perennial herb

Polygonum aviculare ssp. rurivagum Prostrate knotweed

non-native
Annual, Perennial herb

2008 Doreen L. Smith

Polygonum fowleri Fowler's knotweed

native
Annual herb

2015 Ryan Batten

Polygonum hickmanii Hickman's knotweed

• rare native
Annual herb

2006 California Department of Fish and Game

Polygonum majus Large douglas' knotweed

native
Annual herb

2008 Keir Morse

Polygonum multiflorum Tuber fleeceflower

non-native
Vine

2001 CDFA

Polygonum polygaloides ssp. confertiflorum Dense knotweed, Fruitleaf knotweed

native
Annual herb

Polygonum polygaloides ssp. confertiflorum

2007 Keir Morse

Polygonum polygaloides ssp. esotericum Modoc county knotweed, Whitemargin knotweed

• rare native
Annual herb

2023 Donald Burk

Polygonum ramosissimum Bushy knotweed, Yellow knotweed

non-native
Annual herb

2015 Daniel Boone

Polygonum ramosissimum ssp. prolificum Bushy knotweed

non-native
Annual herb

Polygonum ramosissimum ssp. ramosissimum Yellow knotweed

native
Annual herb

Polygonum sawatchense Knotweed

native
Annual herb

2009 Barry Breckling

2012 Dean Wm. Taylor. Ph. D.

2009 Barry Breckling

Polygonum sawatchense ssp. oblivium Knotweed

native
Annual, Perennial herb

2012 Dean Wm. Taylor. Ph. D.

2019 Neal Kramer

2009 Barry Breckling

Polypodium australe

non-native
Fern

POLYPODIACEAE

2007 Dr. Amadej Trnkoczy

Polypodium hesperium Western polypody

native
Fern

POLYPODIACEAE

2011 Ryan Batten

2011 Barry Breckling

Polypogon imberbis Streambank rabbits foot grass

non-native
Annual, Perennial grass

2006 Adonis (Don) Tate

Pontederia cordata Pickerelweed

non-native
Perennial herb

PONTEDERIACEAE

2005 Louis-M. Landry

Populus Xcanadensis Carolina poplar

non-native
Tree

Populus Xparryi

native
Tree

Porophyllum ruderale Yerba porosa

non-native
Annual herb

2014 Richard Spellenberg

Porophyllum ruderale var. macrocephalum Yerba porosa

non-native
Annual herb

2012 Zoya Akulova

Portulaca grandiflora Rose moss

non-native
Annual herb

PORTULACACEAE

2008 Luigi Rignanese

Portulaca halimoides Desert portulaca, Purslane, Silkcotton purslane

• rare native
Annual herb

PORTULACACEAE

2012 Keir Morse

2013 Don Davis

2004 James M. Andre

Potamogeton alpinus Alpine pondweed

native
Perennial herb (aquatic)

2021 Dana York

Potamogeton amplifolius Broad leaved pondweed, Large leaved pondweed, Largeleaf pondweed

native
Perennial herb (aquatic)

2010 Jean Pawek

Potamogeton berchtoldii Narrow leaved pondweed

native
Perennial herb (aquatic)

2021 Dana York

Potamogeton foliosus ssp. fibrillosus Fibrous pondweed

• rare native
Perennial herb

Potamogeton gramineus Grass leaf pondweed, Grass leaved pondweed, Variableleaf pondweed

native
Perennial herb (aquatic)

2021 Dana York

Potamogeton pusillus Small pondweed

native
Perennial herb (aquatic)

2007 Neal Kramer

null

2013 Jake Ruygt

Potentilla anserina ssp. anserina Silver weed cinquefoil

native
Perennial herb

2023 Donald Burk

2002 Margo Bors

2011 Tom Schweich

Potentilla basaltica Black rock potentilla, Soldier meadows cinquefoil

• rare native
Perennial herb

2008 Dean Wm. Taylor, Ph.D.

2009 F. Gauna

Potentilla bruceae Bruce's cinquefoil

native
Perennial herb

2009 Barry Breckling

1995 Saint Mary's College of California

Potentilla concinna Alpine cinquefoil, Elegant cinquefoil

native
Perennial herb

Potentilla concinna var. proxima Elegant cinquefoil

• rare native
Perennial herb

2019 Dylan Neubauer

Potentilla grayi Gray's cinquefoil

native
Perennial herb

2016 Mary Merriman

Potentilla hickmanii Hickman's cinquefoil

• rare native
Perennial herb

2007 Neal Kramer

2005 Bob Huettmann

2009 Neal Kramer

Potentilla millefolia var. klamathensis Cut leaf cinquefoil, Klamath cinquefoil

native
Perennial herb

2012 Gary A. Monroe

Potentilla multijuga Ballona cinquefoil

• rare native
Perennial herb

Potentilla pulcherrima Beautiful cinquefoil

• rare native
Perennial herb

2013 Dylan Neubauer

Potentilla uliginosa Cunningham marsh cinquefoil

• rare native
Perennial herb

Primula conjugens Bonneville shooting star

native
Perennial herb

PRIMULACEAE

2018 Susan McDougall

2015 Daniel Lay (Dodecatheon conjugens)

2016 Keir Morse (Primula conjugens var. viscida)

Primula subalpina Sierra shooting star

native
Perennial herb

PRIMULACEAE

2016 John Doyen

Proboscidea parviflora Doubleclaw

native
Annual herb

MARTYNIACEAE

2009 Barry Rice

Prosartes parvifolia Siskiyou bells

• rare native
Perennial herb

2010 Ray Collett

Prunus angustifolia Chickasaw plum

native
Tree

2018 Susan McDougall

Prunus domestica European plum

non-native
Tree

2005 Luigi Rignanese

Prunus lusitanica Portugal laurel

non-native
Tree

2007 Luisa Arana Navaridas

Prunus mahaleb Mahaleb cherry, St Lucie's Cherry

non-native
Tree

2006 Dr. Amadej Trnkoczy

2014 Stefano Doglio

Prunus pumila Sandcherry

non-native
Tree

2010 Louis-M. Landry

Prunus serrulata Japanese flowering cherry

non-native
Tree

2002 University of California Museum of Paleontology

Prunus subcordata var. kelloggii Kellogg's klamath plum

native
Tree, Shrub

Prunus subcordata var. oregana Oregon klamath plum

native
Tree, Shrub

Prunus subcordata var. subcordata Klamath plum

native
Tree, Shrub

Prunus tomentosa Nanking cherry

non-native
Tree

2004 Nick Kurzenko

Nick Kurzenko

Pseudobraunia californica California pseudobraunia moss

native
Moss

HEDWIGIACEAE

Pseudognaphalium canescens Wright's cudweed

native
Perennial herb

2005 Laura Ann Eliassen

2005 Keir Morse

2010 Gary A. Monroe

Pseudognaphalium macounii Macoun's everlasting

native
Annual, Perennial herb

2011 Louis-M. Landry

Pseudognaphalium roseum Rosy cudweed

native
Annual herb

Pseudoroegneria spicata ssp. inermis Beardless wheatgrass

non-native
Perennial grass

Pseudorontium cyathiferum Deep canyon snapdragon

• rare native
Annual herb

2023 Keir Morse

2011 Aaron Schusteff

2023 Keir Morse

Pseudosasa japonica Arrow bamboo

non-native
Shrub

Pseudostellaria sierrae Sierra starwort

• rare native
Perennial herb (rhizomatous)

2004 Dean Wm. Taylor

2008 Sierra Pacific Industries

2012 Dee E. Warenycia

Psidium guajava Guava

non-native
Tree, Shrub

2010 Moorea Biocode

Psilotum nudum Whisk fern

non-native
Perennial herb

PSILOTACEAE

2010 Barry Rice

2017 Ron Vanderhoff

2017 Ron Vanderhoff

Psorothamnus arborescens var. arborescens Mojave indigo bush, Mojave indigobush

• rare native
Shrub

Psorothamnus arborescens var. arborescens

2005 Michelle Cloud-Hughes

2017 John Doyen

2018 Neal Kramer

Psorothamnus fremontii Fremont indigobush, Fremont's dalea, Fremont's indigo bush

native
Shrub

2006 James M. Andre

1992 Gary A. Monroe

Psorothamnus fremontii var. attenuatus Fremont's dalea, Fremont's indigo bush

• rare native
Shrub

2006 Dr. James D. Adams

2019 Neal Kramer

Psorothamnus fremontii var. fremontii Fremont's dalea, Fremont's indigo bush

native
Shrub

2005 James M. Andre

2010 Neal Kramer

Pteris tremula Australian brake

non-native
Fern

Pteris vittata Ladder brake

non-native
Fern

2017 Aaron Echols

Ptilidium californicum Pacific fuzz wort

• rare native
Liverwort

PTILIDIACEAE

2012 Martin J. Lenz

2013 Scot Loring

Puccinellia distans European alkali grass, Weeping alkaligrass

non-native
Perennial grass

2011 Steve Matson

Puccinellia lemmonii Lemmon's alkali grass, Lemmon's alkaligrass

native
Perennial grass

2011 Steve Matson

Puccinellia parishii Bog alkaligrass, Parish's alkali grass

• rare native
Annual grass

Puccinellia pumila Dwarf alkali grass

• rare native
Perennial grass

Purshia mexicana Mexican cliffrose

native
Shrub

2023 Bob Steele

2000 Gary A. Monroe

2015 Ron Wolf

Pyrola chlorantha Green flowered wintergreen, Greenflowered wintergreen

native
Shrub (stem succulent)

2013 Dr. Amadej Trnkoczy

2012 RT Hawke

2013 Dr. Amadej Trnkoczy

Pyrrocoma hirta var. hirta Sticky pyrrocoma, Tacky goldenweed

native
Perennial herb

Pyrrocoma hirta var. lanulosa Tacky goldenweed, Woolly pyrrocoma

native
Perennial herb

Pyrrocoma lanceolata Intermountain pyrrocoma, Lanceleaf goldenweed

native
Perennial herb

2023 Mike Russler

Pyrrocoma lanceolata var. lanceolata Intermountain pyrrocoma, Lanceleaf goldenweed

native
Perennial herb

2023 Mike Russler

Pyrrocoma lanceolata var. subviscosa Lanceleaf goldenweed, Sticky intermountain pyrrocoma

native
Perennial herb

Pyrrocoma racemosa var. congesta Clustered goldenweed, Del norte pyrrocoma

• rare native
Perennial herb

2007 Keir Morse

Pyrrocoma racemosa var. racemosa Clustered goldenweed, Racemose pyrrocoma

native
Perennial herb

2018 Jake Ruygt

Pyrrocoma uniflora var. gossypina Bear valley pyrrocoma, Plantain goldenweed

• rare native
Perennial herb

2008 Thomas Stoughton

Rick York and CNPS

2005 Chris Wagner, SBNF

Quercus parvula var. parvula Santa cruz island oak

• rare native
Tree

2006 Adonis (Don) Tate

Quercus robur English oak

non-native
Tree

2008 Louis-M. Landry

Quercus Xewanii

native
Shrub, Tree

2022 Connor Keeney

Quercus Xgrandidentata

native
Shrub, Tree

Quercus Xhowellii

native
Shrub, Tree

2023 Joseph Clark

Quercus Xtownei

native
Shrub, Tree

Quillaja saponaria Soapbark

non-native

2011 Dr. Mark S. Brunell

Ranunculus acris Acrid buttercup, Tall buttercup

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

2006 Dr. Amadej Trnkoczy

2008 Louis-M. Landry

Ranunculus alismifolius var. lemmonii Common water plantain buttercup

native
Perennial herb

2018 David popp

Ranunculus bulbosus Bulbous buttercup, St. anthony's turnip

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

Ranunculus canus var. ludovicianus Hartweg's buttercup

native
Perennial herb

Ranunculus cortusifolius Azores buttercup

non-native
Perennial herb

2010 Zoya Akulova

2009 Zoya Akulova

Ranunculus eschscholtzii var. eschscholtzii Eschscholtz's buttercup

native
Perennial herb

Ranunculus eschscholtzii var. eschscholtzii

2022 Dana York

2016 Mary Merriman

Ranunculus flammula var. flammula Greater creeping spearwort

native
Perennial herb

Ranunculus gormanii Gorman's buttercup

native
Perennial herb

2006 Keir Morse

Ranunculus hydrocharoides Frog's bit buttercup, Frogbit buttercup

• rare native
Perennial herb (aquatic)

1998 Larry Blakely

Ranunculus macounii Macoun's buttercup

• rare native
Annual, Perennial herb

2009 Trent M. Draper

Ranunculus occidentalis var. howellii Western buttercup

native
Perennial herb

Ranunculus occidentalis var. ultramontanus Western buttercup

native
Perennial herb

Ranunculus occidentalis var. ultramontanus

2015 Jim Morefield

2021 David popp

2017 David popp

Ranunculus orthorhynchus var. orthorhynchus Straight beaked buttercup, Straightbeak buttercup

native
Perennial herb

Ranunculus orthorhynchus var. orthorhynchus

2008 Keir Morse

Ranunculus parviflorus Few flowered buttercup, Smallflower buttercup

non-native
Annual herb

2008 Keir Morse

Ranunculus pusillus Low buttercup, Low spearwort

native
Annual herb (aquatic)

2023 R.A. Chasey

2007 Jorg & Mimi Fleige

2023 R.A. Chasey

Ranunculus sceleratus var. multifidus Cursed buttercup

native
Annual herb (aquatic)

2008 Trent M. Draper

Ranunculus sceleratus var. sceleratus Cursed buttercup

native
Annual herb (aquatic)

2015 Neal Kramer

2015 Zoya Akulova

Ratibida columnifera Upright prairie coneflower

non-native
Perennial herb

2007 LTC William E. Ottinger, Ph.D.

2008 Louis-M. Landry

Reseda alba White mignonette, White upright mignonette

non-native
Perennial herb

RESEDACEAE

2006 Luigi Rignanese

2005 Luigi Rignanese

Reseda odorata Garden mignonette

non-native
Annual herb

RESEDACEAE

Rhamnus cathartica Common buckthorn

non-native
Shrub

2016 Keir Morse

Rhamnus pilosa Hairyleaf redberry

native
Shrub

2016 Keir Morse

Rhododendron occidentale var. paludosum Western azalea

native
Tree, Shrub

Rhus lanceolata Prairie sumac

non-native
Shrub

ANACARDIACEAE

2002 University of California Museum of Paleontology

Rhynchospora capitellata Brownish beaksedge, Capitate beaked rush

• rare native
Perennial grasslike herb

2004 Dean Wm. Taylor

2010 Aaron Arthur

Rhynchospora globularis Globe beaksedge

• rare native
Perennial grasslike herb (rhizomatous)

2004 Steve Matson

Ribes divaricatum var. parishii Parish's gooseberry

• rare native
Shrub

Ribes menziesii var. ixoderme Aromatic canyon gooseberry, Sierra canyon gooseberry

• rare native
Shrub

2008 Chris Winchell

Ribes roezlii var. amictum Sierra gooseberry

• rare native
Shrub

1973 Dean Wm. Taylor

Ribes sericeum Santa lucia gooseberry

• rare native
Shrub

2024 Keir Morse

Ribes tularense Sequoia gooseberry, Tulare gooseberry

• rare native
Shrub

2010 Dana York

Riccia beyrichiana Purple crystalwort

native
Liverwort

RICCIACEAE

2024 Mike Russler

Riella americana American riella

• rare native
Liverwort

RIELLACEAE

Robinia neomexicana Desert locust, New mexico locust

• rare native
Tree, Shrub

2014 John Doyen

2010 Lee Dittmann

2010 James M. Andre

Rorippa austriaca Austrian field cress, Austrian yellowcress

non-native
Perennial herb

2008 John Dittes

2001 CDFA

Rorippa palustris ssp. hispida Hispid yellowcress

native
Annual, Perennial herb

Rorippa sphaerocarpa Round fruit yellow cress, Roundfruit yellowcress

native
Annual herb

2015 Barry Breckling

2008 Michael Charters

2015 Barry Breckling

Rorippa sylvestris Creeping yellowcress

• invasive non-native
Perennial herb

Rorippa tenerrima Modoc yellow cress

native
Annual herb

Rosa nutkana ssp. macdougalii Nootka rose

native
Shrub

2018 Susan McDougall

Rosa pisocarpa ssp. ahartii Ahart rose

native
Shrub

2018 Sierra Pacific Industries

2014 Neal Kramer

Rosa rugosa Rugosa rose

non-native
Shrub, Vine

1998 Nick Kurzenko

2008 Louis-M. Landry

2000 Nick Kurzenko

Rosa woodsii var. gratissima Tehachapi rose

native
Shrub

Rotala indica Indian toothcup

non-native
Annual herb

LYTHRACEAE

Rubia tinctoria Madder

non-native
Perennial herb

2013 Jean Pawek

Rubus allegheniensis Allegheny blackberry

non-native
Shrub

2008 Louis-M. Landry

Rubus glaucifolius var. ganderi Cuyamaca raspberry

• rare native
Shrub

Rubus idaeus ssp. strigosus Grayleaf red raspberry

native
Shrub

Rubus nivalis Snow bramble, Snow dwarf bramble, Snow raspberry

• rare native
Vine

2023 Amy Rachkowski

2015 Chris Wagner

Rubus pensilvanicus Pennsylvania blackberry

non-native
Vine, Shrub

2013 Zoya Akulova

Rubus ulmifolius var. ulmifolius Elmleaf blackberry

non-native
Shrub, Vine

Rumex britannica Pale dock

non-native
Perennial herb

Rumex bucephalophorus Red dock

non-native
Perennial herb

Rumex kerneri Kerner's dock

non-native
Perennial herb

2024 Donald Burk

2023 Donald Burk

2024 Donald Burk

Rumex lacustris Lake dock

native
Perennial herb (aquatic)

2018 Leah Gardner

Rumex palustris

non-native
Perennial herb

2010 Luigi Rignanese

Rumex persicarioides Golden dock

native
Annual, Perennial herb

2015 Ryan Batten

Rumex sanguineus Redvein dock

non-native
Perennial herb

2009 Phil Pullen

2010 Zoya Akulova

Rumex utahensis Toothed willow dock

native
Perennial herb

2014 Jim Morefield

Rumex violascens Mexican dock, Violet dock

native
Annual, Perennial herb

Rupertia rigida Parish's california tea, Parish's rupertia

• rare native
Perennial herb

2008 Erin Shapiro

2006 Chris Wagner, SBNF

2008 Thomas Stoughton

Rytidosperma biannulare

non-native
Perennial grass

Rytidosperma racemosum

non-native
Perennial grass

Sabulina decumbens The Lassics sandwort

• rare native
Perennial herb

2018 Jeb Bjerke

Sabulina howellii Howell's sandwort

• rare native
Perennial herb

2023 Dana York

2008 Nathan Bello

Sabulina stricta bog sandwort

• rare native
Perennial herb

2016 Jim Morefield

2016 Steve Matson

Sagina maxima Stickystem pearlwort

native
Perennial herb

2015 Zoya Akulova (ssp. crassicaulis)

2011 Sangeet Khalsa (ssp. crassicaulis)

Sagina maxima ssp. crassicaulis Beach pearlwort, Perennial pearlwort, Stickystem pearlwort

native
Perennial herb

2011 Sangeet Khalsa

2005 Doreen L. Smith

Sagina subulata Awl leaf pearlwort

non-native
Perennial herb

2005 Louis-M. Landry

2007 Louis-M. Landry

Sagittaria brevirostra Shortbeak arrowhead

non-native
Perennial herb

ALISMATACEAE

2002 Doreen L. Smith

2004 Doreen L. Smith

2018 Vernon Smith

Sagittaria latifolia Broad leaf arrowhead, Broadleaf arrowhead, Wappato

native
Perennial herb (aquatic)

ALISMATACEAE

2005 Louis-M. Landry

2007 George W. Hartwell

2005 Louis-M. Landry

Sagittaria rigida Sessilefruit arrowhead

non-native
Perennial herb

ALISMATACEAE

2008 Louis-M. Landry

2007 Louis-M. Land

Salicornia depressa Virginia glasswort

native
Annual herb

2012 Jason Matthias Mills

2014 Cuyler Stapelmann

2006 Doreen L. Smith

Salicornia perennis Chickenclaws

native
Perennial herb

2006 Matt Below

2022 Cynthia Powell

Salicornia rubra Red pickleweed, Red swampfire

native
Annual herb

2007 Trent M. Draper

2010 Christopher Bronny

2009 Robert Sivinski

Salix alba White willow

non-native
Shrub, Tree

2008 Louis-M. Landry

Salix bebbiana Bebb willow, Gray willow

• rare native
Tree

2008 Louis-M. Landry

2008 Robert Sivinski

2008 Louis-M. Landry

Salix drummondiana Drummond's willow

native
Shrub

Salix lasiandra var. caudata Shining willow

native
Shrub

1995 Saint Mary's College of California

Salix matsudana Corkscrew willow

non-native
Tree

2019 Jennifer Mo

Salix prolixa Mackenzie's willow

native
Tree, Shrub

2012 Zoya Akulova

2014 Zoya Akulova

Salix purpurea Purpleosier willow

non-native
Tree

2007 Dr. Amadej Trnkoczy

2008 Dr. Amadej Trnkoczy

Salix tracyi Tracy's willow

native
Tree, Shrub

Salix Xrubens Hybrid crack willow

non-native
Shrub, Tree

Salix Xsepulcralis Weeping willow

non-native
Tree

2007 Louis-M. Landry

Salsola damascena Russian thistle

• invasive non-native
Shrub

2012 Quinn Cypher

Salsola gobicola Barbwire russian thistle

• invasive non-native
Annual, Perennial herb

Salsola paulsenii Barbwire russian thistle, Paulsen's russian thistle

• invasive non-native
Annual, Perennial herb

2005 Steve Matson

2005 James M. Andre

2017 Mason Hyland

Salsola ryanii

• invasive non-native
Annual herb

Saltugilia caruifolia Caraway leaved woodland gilia

• rare native
Annual herb

2014 Keir Morse

Saltugilia latimeri Latimer's woodland gilia

• rare native
Annual herb

Jordan Zylstra

Salvia aethiopis Mediterranean sage

• invasive non-native
Perennial herb

2018 Matt Berger

2001 CDFA

Salvia apiana var. compacta Compact white sage

native
Shrub

Salvia dorrii var. dorrii Dorr's sage

native
Shrub

2009 Thomas Stoughton

2022 R.A. Chasey

Salvia officinalis Kitchen sage

non-native
Perennial herb

2010 Zoya Akulova

2011 Dr. Mark S. Brunell

2011 Louis-M. Landry

Salvia pratensis Introduced sage

non-native
Shrub

2007 Dr. Amadej Trnkoczy

Salvia verbenaca Verbena sage

non-native
Perennial herb

2007 Luigi Rignanese

Salvia virgata Wand sage

• invasive non-native
Perennial herb

Salvia Xbernardina

native
Perennial herb

2022 Keir Morse

Salvinia molesta Kariba weed

• invasive non-native
Annual, Perennial herb

SALVINIACEAE

2010 Barry Rice

2009 Barry Rice

Salvinia oblongifolia

non-native
Annual, Perennial herb

SALVINIACEAE

Sanguisorba minor ssp. balearica Small burnet

non-native
Perennial herb

Sanguisorba officinalis Great burnet, Official burnet

• rare native
Perennial herb (rhizomatous)

2008 Keir Morse

2013 Asa Spade

Santolina chamaecyparissus Lavender cotton

non-native
Shrub

2012 Richard Spellenberg

2006 Luigi Rignanese

Sanvitalia procumbens Mexican creeping zinnia

non-native
Annual herb

2006 Louis-M. Landry

2005 Louis-M. Landry

Sarcobatus baileyi Bailey's greasewood

• rare native
Shrub

SARCOBATACEAE

2009 Gary A. Monroe

Sarracenia purpurea Purple pitcherplant, Purple sarracenia

non-native
Perennial herb (stem succulent)

SARRACENIACEAE

2002 Bj�rnar Olsen

2006 Louis-M. Landry

Sarracenia purpurea ssp. venosa Purple sarracenia

non-native
Perennial herb (stem succulent)

SARRACENIACEAE

2008 Forbes Conrad

2006 Barry Rice

Satureja calamintha ssp. ascendens Woodland calamint

non-native
Perennial herb

2017 John Doyen

2017 Adam Chasey

2011 Eric Wrubel

Saussurea americana American saw wort

• rare native
Perennial herb

2003 Norman Jensen

2019 Matt C. Berger

2010 Norman Jensen

Saxifraga hyperborea Pygmy saxifrage

native
Perennial herb

2011 Ryan Batten

1982 Dean Wm. Taylor

Saxifraga rufidula Rusty saxifrage, Rustyhair saxifrage

native
Perennial herb (rhizomatous)

2007 Gerald D. Carr

Saxifraga stolonifera Creeping saxifrage, Strawberry geranium

non-native
Perennial herb

Charles Webber1998 California Academy of Sciences

Scabiosa stellata Pincushion flower, Starflower pincushions

non-native
Annual herb

DIPSACACEAE

Schedonnardus paniculatus Tumblegrass

non-native
Perennial grass

2011 Steve Matson

Schizachyrium scoparium Little bluestem

non-native
Perennial grass

Schizymenium shevockii Shevock's copper moss

native
Moss

Schoenoplectiella mucronata Bog Bulrush

native
Perennial grasslike herb

Schoenoplectiella saximontana Rocky Mountain Bulrush

native
Perennial grasslike herb

Schoenoplectus heterochaetus Slender bulrush

• rare native
Perennial grasslike herb (rhizomatous)

2023 Matt Berger

Schoenoplectus mucronatus Bog bulrush

non-native
Perennial grasslike herb

2004 Steve Matson

2001 CDFA

Schoenoplectus saximontanus Rocky mountain bulrush

native
Annual grasslike herb

2004 Steve Matson

Schoenoplectus tabernaemontani Softstem bulrush

native
Perennial grasslike herb

2008 Louis-M. Landry

2005 Louis-M. Landry

Schoenoplectus triqueter Three-sided bulrush

non-native
Perennial grasslike herb (rhizomatous)

Schoenus nigricans Black bogrush, Black sedge

• rare native
Perennial grasslike herb

2006 Trent M. Draper

Scirpus diffusus Diffuse rush, Umbrella bulrush

native
Perennial grasslike herb

2006 Dean Wm. Taylor, Ph.D.

2004 Steve Matson

Scleropogon brevifolius Burro grass, Burrograss

• rare native
Perennial grass

2013 Duncan S. Bell

Scolymus hispanicus Common goldenthistle, Golden thistle

• invasive non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2001 CDFA

Scopelophila cataractae Cataract scopelophila moss

• rare native
Moss

Scorzonera hispanica Black salsify, Spanish salsify, Viper's grass

non-native
Perennial herb

Scouleria aquatica Blackmat splashzone moss

native
Moss

SCOULERIACEAE

Scouleria marginata Marginate splashzone moss

native
Moss

SCOULERIACEAE

Scrophularia villosa Santa catalina figwort

• rare native
Shrub

2011 Dylan Neubauer

Scutellaria holmgreniorum Holmgren's skullcap

• rare native
Perennial herb (rhizomatous)

2009 Keir Morse

2006 Steve Matson

Scutellaria lateriflora Blue skullcap, Mad dog skullcap

• rare native
Perennial herb (rhizomatous)

2010 Louis-M. Landry

2017 Julie Watson

2019 Julie Ann Watson

Sedella leiocarpa Lake county stonecrop

• rare native
Annual herb

2008 Cherilyn Burton

Sedum eastwoodiae Red mountain sedum, Red mountain stonecrop, Red mtn. stonecrop

native
Perennial herb

2014 Carex Working Group

2003 BLM,Arcata Field Office

Sedum laxum ssp. laxum Rose flowered stonecrop, Roseflower stonecrop

native
Perennial herb

2023 Dana York

2008 Ray Stephenson

Sedum oblanceolatum Applegate stonecrop, Oblongleaf stonecrop

• rare native
Perennial herb

2023 Julie A. Kierstead

Sedum oreganum Oregon stonecrop

native
Perennial herb

2009 Leigh Johnson

2005 Jerry Murray

Sedum paradisum ssp. subroseum

native
Perennial herb

2022 Kirsten Bovee

Selaginella densa Lesser spikemoss

native

SELAGINELLACEAE

2016 Keir Morse

University and Jepson Herbaria

Selaginella kraussiana Krauss' spikemoss

non-native

SELAGINELLACEAE

2023 Dana York

Selaginella oregana Oregon spike moss, Oregon spikemoss

native

SELAGINELLACEAE

2021 Dana York

2018 Susan McDougall

Senecio astephanus San gabriel ragwort

• rare native
Perennial herb

2021 Aaron Echols

Senecio clevelandii var. clevelandii Cleveland's ragwort

• rare native
Perennial herb

Senecio integerrimus var. ochroleucus Paleyellow ragwort, White flowered mountain butterweed

native
Perennial herb

2018 Susan McDougall

Senecio squalidus Oxford ragwort

non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

Senna alata Emperor's candlesticks

non-native
Annual herb, Perennial herb, Shrub

Jules Strauss2004 California Academy of Sciences

2010 Moorea Biocode

Senna marilandica Maryland senna

non-native
Shrub

2008 Louis-M. Landry

Senna multiglandulosa Glandular cassia

non-native
Shrub

2011 Neal Kramer

2014 Wynn Anderson

2011 Neal Kramer

Senna obtusifolia Blunt leafed senna, Java bean

non-native
Annual, Perennial herb

2010 Dr. Mark S. Brunell

2010 Moorea Biocode

Sesbania emerus Danglepod

non-native
Annual herb

Setaria faberi Foxtail, Japanese bristlegrass

non-native
Annual grass

2007 Robert E. Preston, Ph.D.

2008 Louis-M. Landry

Setaria italica Foxtail bristlegrass

non-native
Annual grass

2011 Zoya Akulova

Setaria sphacelata African bristlegrass

non-native
Perennial grass

2011 Zoya Akulova

Sibara filifolia Island rockcress, Santa cruz island rock cress, Santa cruz island winged rockcress

• rare native
Annual herb

2008 Kim M. Klementowski

2011 Neal Kramer

Sida abutifolia Spreading fanpetals

non-native
Annual herb

2006 Matt Below

Robert Potts2001 California Academy of Sciences

Sidalcea asprella ssp. nana Dwarf sierran checkerbloom

native
Perennial herb

2021 Dana York

Sidalcea celata Redding checkerbloom

• rare native
Perennial herb

2022 Donald Burk

2023 Donald Burk

Sidalcea elegans Del norte checkerbloom

• rare native
Perennial herb

Sidalcea hickmanii ssp. hickmanii Hickman's checkerbloom

• rare native
Perennial herb

2022 Scott Yarger

2022 Ken Hickman

Sidalcea hickmanii ssp. pillsburiensis Lake pillsbury checkerbloom

• rare native
Perennial herb

Sidalcea hickmanii ssp. viridis Marin checkerbloom

• rare native
Perennial herb

Sidalcea malviflora ssp. dolosa Deceitful checker mallow, Dwarf checkerbloom

• rare native
Perennial herb (rhizomatous)

2009 Thomas Stoughton

Sidalcea malviflora ssp. rostrata Dwarf checkerbloom

native
Perennial herb

2017 Steve Matson

Sidalcea oregana ssp. eximia Coast checkerbloom

• rare native
Perennial herb

2015 Adam Canter

2022 Macy Budesilich

Sidalcea oregana ssp. hydrophila Marsh checkerbloom, Oregon checkerbloom

• rare native
Perennial herb

2005 Jennifer L. Kalt

Sidalcea setosa Bristly checkerbloom

native
Perennial herb

Sidalcea stipularis Scadden flat checkerbloom

• rare native
Perennial herb (rhizomatous)

2000 John Game

Rick York and CNPS

2008 Virginia Moran

Silene bridgesii Bridges campion, Bridges' campion, Bridges' catchfly

native
Perennial herb

2008 Ron Wolf

2009 Keir Morse

Silene conoidea Cone campion, Weed silene

non-native
Annual herb

Silene dichotoma Branching campion, Dichotoma silene

non-native
Annual herb

Silene dichotoma ssp. dichotoma Branching campion

non-native
Annual herb

Silene latifolia Bladder campion

non-native
Perennial herb

2015 John Doyen

2007 Luigi Rignanese

Silene marmorensis Marble mountain catchfly, Marble mtn. campion

• rare native
Perennial herb

2022 Dana York

2021 Dana York

Silene noctiflora Night flowering campion, Nightflowering silene

non-native
Annual herb

2008 Louis-M. Landry

2006 Louis-M. Landry

2008 Louis-M. Landry

Silene occidentalis ssp. longistipitata Western campion, Western catchfly

• rare native
Perennial herb

2005 Dean Wm. Taylor

2013 Kirsten Bovee

2018 Sierra Pacific Industries

Silene oregana Oregon campion, Oregon silene

• rare native
Perennial herb

2012 Gary A. Monroe

2019 Matt C. Berger

Silene pseudatocion North african catchfly

non-native
Annual herb

Sinapis alba White mustard

non-native
Annual herb

2006 Luigi Rignanese

2011 Louis-M. Landry

2006 Luigi Rignanese

Sisymbrium loeselii Rocket, Small tumbleweed mustard

non-native
Annual herb

2012 Jean Pawek

2011 Jean Pawek

Sisyrinchium halophilum Nevada blue eyed grass

native
Perennial herb

2004 James M. Andre

2016 Neal Kramer

2002 Thomas M. Elder, M.D.

Sisyrinchium hitchcockii Hitchcock's blue eyed grass

• rare native
Perennial herb (rhizomatous)

2021 Dana York

Sisyrinchium idahoense var. idahoense Idaho blue eyed grass

native
Perennial herb

2023 Dana York

Sisyrinchium minus Dwarf blue eyed grass

non-native
Perennial herb

2018 Cristian Singer

Solanum cardiophyllum Heartleaf horsenettle

non-native
Annual, Perennial herb

2001 CDFA

Solanum dimidiatum Torrey's nightshade, Western horsenettle

non-native
Perennial herb

2006 Howard Orman Clark, Jr.

2001 CDFA

Solanum gayanum Chilean nightshade

non-native
Vine

Solanum heterodoxum Melonleaf nightshade

native
Annual, Perennial herb

2016 Wynn Anderson

Solanum marginatum Purple african nightshade, White margined nightshade

non-native
Shrub

2001 CDFA

Solanum mauritianum Earleaf nightshade

non-native
Shrub

2019 James Bailey

Solanum scabrum Garden huckleberry

non-native
Annual herb

Solanum sisymbriifolium Sticky nightshade

non-native
Annual herb

Solidago altissima ssp. altissima Late goldenrod

non-native
Perennial herb

2016 Keir Morse

Solidago lepida var. salebrosa Western goldenrod

• rare native
Perennial herb (rhizomatous)

2007 Dr. Amadej Trnkoczy

2011 Wynn Anderson

Solidago velutina ssp. sparsiflora Great basin goldenrod

native
Perennial herb

2011 Robert Sivinski

2012 Richard Spellenberg

2010 Lee Dittmann

Sonchus arvensis ssp. arvensis Field sowthistle

non-native
Perennial herb

2020 Ecological Concerns Inc

2015 Richard Spellenberg

Sonchus arvensis ssp. uliginosus Moist sowthistle

non-native
Perennial herb

2015 Richard Spellenberg

Sonchus tenerrimus Slender sow thistle, Slender sowthistle

non-native
Annual herb

2007 Luigi Rignanese

2018 Brian Charles

Sonnea hispida Cascade popcornflower

native
Annual herb

2006 Steve Matson

2022 richard mcneill

Sorbus sitchensis Western mountain ash

native
Tree, Shrub

2015 Barry Breckling

2016 Steven Thorsted

2015 Robert Sikora

Sorbus sitchensis var. grayi Sitka mountain ash, Western mountain ash

native
Tree, Shrub

2015 Robert Sikora

Sorbus sitchensis var. sitchensis Sitka mountain ash

native
Tree, Shrub

2018 Susan McDougall

Sorghum bicolor ssp. arundinaceum Common wild sorghum

non-native
Annual grass

Sorghum bicolor ssp. bicolor Grain sorghum

non-native
Annual grass

2005 Louis-M. Landry

Sorghum bicolor ssp. drummondii Sudangrass

non-native
Annual grass

Sparaxis grandiflora Large flowered harlequin flower

non-native
Perennial herb

2003 Yulan Tong

2013 Robert Sikora

Sparganium erectum Simplestem bur reed

native
Perennial herb

TYPHACEAE

2010 Louis-M. Landry (ssp. stoloniferum)

2006 Louis-M. Landry (ssp. stoloniferum)

Spartina alterniflora Salt water cord grass, Smooth cordgrass

• invasive non-native
Perennial grass

2014 Vertin Alvarez

2009 Zoya Akulova

Spartina anglica Common cordgrass

• invasive non-native
Perennial grass

2018 Joe DiTomaso

Spartina densiflora Dense flowered cord grass, Denseflower cordgrass

• invasive non-native
Perennial grass

2001 Joe DiTomaso

Spartina patens Salt meadow cord grass, Saltmeadow cordgrass

• invasive non-native
Perennial grass

2000 Joe DiTomaso

2011 Steve Matson

Spergularia canadensis Canadian sandspurry

native
Annual herb

2008 Gerald D. Carr

Spergularia canadensis var. occidentalis Northern sand spurrey, Western sandspurry

• rare native
Annual herb

Spergularia canadensis var. occidentalis

2008 Gerald D. Carr

Spergularia media var. media Sand spurry

non-native
Annual, Perennial herb

2018 Vernon Smith

2013 Vernon Smith

Spergularia platensis La plata sandspurry

non-native
Annual herb

Spermolepis echinata Bristly scaleseed, Bristly spermolepis

native
Annual herb

2011 Steve Matson

Spermolepis lateriflora western bristly scaleseed

• rare native
Annual herb

2020 Richard Spellenberg

Sphaeralcea emoryi Emory's globemallow

native
Perennial herb

2010 Steven Thorsted

2009 Robert Steers

2010 Steven Thorsted

Sphaeralcea emoryi var. emoryi Emory's desert mallow, Emory's globemallow

native
Perennial herb

2001 Steven Thorsted

2016 Keir Morse

Sphaeralcea grossulariifolia Gooseberryleaf globemallow

• rare native
Perennial herb, Shrub

2015 Ron Wolf

2006 James M. Andre

2010 Mary Winter

Sphaeralcea laxa Caliche globemallow

non-native
Perennial herb, Shrub

2020 Toutcha Lebgue-Keleng

2019 John Doyen

2020 Toutcha Lebgue-Keleng

Sphaeralcea munroana Munro's globemallow

• rare native
Perennial herb

2010 Gary A. Monroe

2012 Gary A. Monroe

Sphaeralcea orcuttii Carrizo creek globemallow, Carrizo mallow

native
Annual, Perennial herb

2018 Fred Melgert

Sphaeralcea rusbyi Rusby's globemallow

native
Perennial herb

2011 Keir Morse

2008 Hartmut Wisch (var. eremicola)

Sphaeralcea rusbyi var. eremicola Rusby's desert mallow

• rare native
Perennial herb

2011 Keir Morse

2010 James M. Andre

Sphaerocarpos drewei Bottle liverwort

• rare native
Liverwort

SPHAEROCARPACEAE

University and Jepson Herbaria

Sphaerocarpos drewiae Bottle liverwort

• rare native
Liverwort

SPHAEROCARPACEAE

University and Jepson Herbaria

Sphaerophysa salsula Alkali swainsonpea, Austrian peaweed

• invasive non-native
Perennial herb

2009 Barry Breckling

Sphaeropteris cooperi Cooper's tree fern

non-native
Perennial herb

CYATHEACEAE

Spinacia oleracea Spinach

non-native
Annual herb

2008 Louis-M. Landry

2006 Louis-M. Landry

Sporobolus contractus Spike dropseed

native
Perennial grass

2005 James M. Andre

2011 Steve Matson

Sporobolus flexuosus Mesa dropseed

native
Perennial grass

2011 Steve Matson

Sporobolus junceus Pineywoods dropseed

non-native
Perennial grass

Sporobolus vaginiflorus Poverty dropseed, Poverty grass

non-native
Annual grass

Sporobolus wrightii Big sacaton

native
Perennial grass

2009 Steve Matson

Stachys arvensis Annual hedge nettle, Field hedge nettle, Staggerweed

non-native
Annual herb

2016 Andrew Longman

2013 Demo6 Calflora

2009 Phil Pullen

Stachys bergii Berg's hedgenettle

native
Perennial herb

Stachys floridana Florida hedgenettle

non-native
Perennial herb

Stachys palustris Marsh hedgenettle

native
Perennial herb

2006 Dr. Amadej Trnkoczy

2010 Louis-M. Landry

2006 Dr. Amadej Trnkoczy

Stanleya viridiflora Green flowered prince's plume, Green princesplume

• rare native
Perennial herb

2021 Sarah Tona

2014 Mary Winter

Stellaria crispa Curled starwort, Ruffled starwort

native
Perennial herb

2010 Barry Breckling

2006 Doreen L. Smith

2012 Jean Pawek

Stellaria graminea Grasslike starwort

non-native
Perennial herb

2009 Phil Pullen

2008 Zoya Akulova

Stellaria longifolia Long leaved starwort, Longleaf starwort

• rare native
Perennial herb (rhizomatous)

2009 Sierra Pacific Industries

Stellaria pallida Pale starwort

non-native
Annual herb

2022 Donald Burk

2004 Keir Morse

Stellaria umbellata Umbellate chickweed, Umbrella starwort

native
Perennial herb

2005 Steve Matson

2015 Barry Breckling

Stemodia durantifolia White woolly stemodia, Whitewoolly twintip

• rare native
Perennial herb

2017 Keir Morse

Stenotus lanuginosus var. lanuginosus Woolly stenotus

• rare native
Perennial herb

2015 Sierra Pacific Industries

Stephanomeria exigua ssp. deanei Dean's stephanomeria, Deane's wirelettuce

native
Annual herb

2012 Keir Morse

Stephanomeria exigua ssp. macrocarpa Large fruited stephanomeria, Whiteplume wirelettuce

native
Annual herb

Stephanomeria paniculata Stiff branched stephanomeria, Tufted wirelettuce

native
Annual herb

2006 George W. Hartwell

2019 David popp

2006 George W. Hartwell

Stillingia paucidentata Mojave stillingia, Mojave toothleaf, Tooth leaf

native
Perennial herb

2013 Neal Kramer

2023 Matt Berger

Stipa comata var. intermedia Intermediate needle & thread grass

native
Perennial grass

2018 Stefan Eggenberg

Stipa exigua Little ricegrass

• rare native
Perennial grass

2011 Steve Matson

2023 Matt C. Berger

Stipa latiglumis Wide-glumed needle grass

native
Perennial grass

2005 Steve Matson

Stipa lemmonii var. pubescens Pubescent needle grass

• rare native
Perennial grass

Stipa lettermanii Letterman's needle grass

native
Perennial grass

2005 Steve Matson

2004 Steve Matson

Stipa mauritanica Mauritanian grass

non-native
Perennial grass

2010 Zoya Akulova

2001 CDFA

Stipa nevadensis Nevada needle grass

native
Perennial grass

2005 Steve Matson

Stipa occidentalis var. pubescens Common western needle grass

native
Perennial grass

Stipa pinetorum Pinewoods needle grass

native
Perennial grass

2019 David Greenberger

2005 Steve Matson

Stipa thurberiana Thurber's needle grass

native
Perennial grass

2005 Steve Matson

Streptanthus gracilis Alpine jewel flower, Alpine jewelflower

• rare native
Annual herb

2018 Matt C. Berger

Streptanthus howellii Howell's jewel flower, Howell's jewelflower

• rare native
Perennial herb

1990 Dean Wm. Taylor

Rick York and CNPS

2005 Shawn DeCew

Streptanthus insignis ssp. lyonii Arburua ranch jewel flower, Arburua ranch jewelflower

• rare native
Annual herb

2022 Ryan O'Dell

Streptanthus morrisonii ssp. hirtiflorus Dorr's cabin jewel flower, Dorr's cabin jewelflower

• rare native
Perennial herb

Streptanthus morrisonii ssp. hirtiflorus

1998 Dean Wm. Taylor

1998 John Game

Streptanthus morrisonii ssp. kruckebergii Kruckeberg's jewel flower, Krukeberg's jewelflower

• rare native
Perennial herb

Streptanthus morrisonii ssp. kruckebergii

1998 Dean Wm. Taylor

1998 John Game

Streptanthus morrisonii ssp. morrisonii Morrison's jewel flower, Morrison's jewelflower

• rare native
Perennial herb

1998 Dean Wm. Taylor

1998 John Game

Streptanthus oliganthus Masonic mountain jewelflower, Masonic mtn. jewel flower

• rare native
Perennial herb

2012 Lynn Robertson

Margaret Williams and CNPS

Streptanthus vimineus

native
Annual herb

2023 Ryan O'Dell

2016 Amelia Ryan

Amelia Ryan

Prosopis strombulifera Argentine screwbean

non-native
Shrub

Stuckenia striata Broadleaf pondweed

native
Perennial herb (aquatic)

Stylocline citroleum Oil nest straw, Oil neststraw

• rare native
Annual herb

2013 Chris Winchell

Stylocline masonii Mason neststraw, Mason's neststraw

• rare native
Annual herb

2020 Ryan O'Dell

Stylocline sonorensis Mesquite neststraw, Sonoran neststraw

• rare native
Annual herb

Suaeda calceoliformis Horned sea blite, Pursh seepweed

native
Annual herb

2023 R.A. Chasey

2003 George W. Hartwell

Sulcaria badia grooved beard lichen

• rare native
Lichen

ALECTORIACEAE

2013 Scot Loring

2016 Eric B. Peterson

Sulcaria isidiifera Splitting yarn lichen

• rare native
Lichen

ALECTORIACEAE

Syagrus romanzoffiana Queen palm

non-native
Tree

ARECACEAE

2012 Ron Vanderhoff

2008 Luigi Rignanese

Symphyotrichum foliaceum var. apricum Alpine leafybract aster

native
Perennial herb

2014 James Gonsman

Symphyotrichum foliaceum var. canbyi Canby's aster

native
Perennial herb

2014 Trent M. Draper

Symphyotrichum laeve Smooth blue aster

native
Perennial herb

2008 Gerald Carr

Symphyotrichum laeve var. geyeri Geyer's aster

native
Perennial herb

2008 Gerald Carr

Symphyotrichum spathulatum var. intermedium Larger western mountain aster

native
Perennial herb

Symphyotrichum spathulatum var. intermedium

2014 Richard Spellenberg

Symphyotrichum subulatum var. elongatum Eastern annual saltmarsh aster

non-native
Perennial herb

Symphytum Xuplandicum Russian comfrey

non-native
Perennial herb

2014 Simon J. Tonge

Syntrichopappus lemmonii Lemmon's syntrichopappus, Pinkray fremont's gold

• rare native
Annual herb

2016 Keir Morse

2006 J. Zylstra, SBNF

2016 Keir Morse

Syzygium australe Brush cherry

non-native
Tree

2015 Zoya Akulova

Tagetes erecta French or african marigold

non-native
Annual herb

2004 Nick Kurzenko

2011 Nick Kurzenko

2014 Zoya Akulova

Tamarix aralensis Russian tamarisk

non-native
Tree, Shrub

TAMARICACEAE

Tanacetum balsamita Costmary

non-native
Perennial herb

Teesdalia coronopifolia Lesser shepherds cress, Lesser shepherdscress

non-native
Annual herb

2006 Barrett Jeffery

2006 Jeffery Barrett

Tetradymia argyraea Striped cottonthorn, Striped horsebrush

• rare native
Shrub

2012 Duncan S. Bell

2011 Duncan S. Bell

Tetradymia axillaris var. axillaris Catclaw horsebrush, Longspine horsebrush

native
Shrub

2005 Steve Matson

Teucrium canadense Canada germander

native
Annual herb

2009 Keir Morse

Teucrium canadense var. occidentale Western germander

native
Annual herb

2009 Keir Morse

Teucrium cubense Small coastal germander

native
Annual herb

2015 Wynn Anderson (ssp. depressum)

Teucrium cubense ssp. depressum Lou germander, Small coastal germander

• rare native
Annual herb

2015 Wynn Anderson

Teucrium fruticans Shrubby germander

non-native
Shrub

2019 Randy Huey

2005 Luigi Rignanese

2011 Robert Steers

Teucrium glandulosum Common germander, Germander, Sticky teucrium

• rare native
Shrub

2018 Brian Keelan

Texosporium sancti-jacobi Woven-spored lichen

• rare native
Lichen

CALICIACEAE

2015 Keir Morse

2014 Scot Loring

Thalictrum occidentale Western meadow rue

native
Perennial herb

2006 Louis-M. Landry

2013 Jason Matthias Mills

BLM,Arcata Field Office

Thelesperma megapotamicum Hopi tea greenthread

non-native
Perennial herb

2007 Zoya Akulova

2014 Richard Spellenberg

2007 Zoya Akulova

Thelesperma simplicifolium Slender greenthread

non-native
Perennial herb

2009 Barry Breckling

Thelypodium flexuosum Nodding thelypodium, Nodding thelypody, Thelypodium

native
Perennial herb

1998 Dan Post

2008 Mary Winter

2014 Mary Winter

Thelypodium howellii Howell's thelypody

native
Perennial herb

1990 Dean Wm. Taylor (ssp. howellii)

Thelypodium howellii ssp. howellii Howell's thelypodium, Howell's thelypody

• rare native
Perennial herb

1990 Dean Wm. Taylor

Thelypodium stenopetalum Slender petaled thelypodium, Slenderpetal thelypody

• rare native
Perennial herb

2009 Thomas Stoughton

2012 Aaron Schusteff

Themeda quadrivalvis Kangaroo grass

non-native
Annual grass

Thevetia peruviana Luckynut

non-native
Tree, Shrub

2012 Neal Kramer

2018 Zoya Akulova

Thysanocarpus conchuliferus Cupped fringe pod, Santa cruz island fringepod, Santa cruz island lacepod

• rare native
Annual herb

Rick York and CNPS

Thysanocarpus curvipes ssp. amplectens Common fringe pod

native
Annual herb

2020 David Styer

2023 Christopher Bronny

Thysanocarpus desertorum Narrow leaved lacepod

native
Annual herb

2016 John Doyen

Thysanocarpus rigidus Rigid fringepod

• rare native
Annual herb

2015 Keir Morse

Tidestromia lanuginosa Woolly tidestromia

native
Annual herb

2014 Wynn Anderson

2015 Wynn Anderson

Tilia americana American basswood

non-native
Tree

TILIACEAE

2006 Louis-M. Landry

2005 Dr. Mark S. Brunell

Tillandsia usneoides Spanish moss

non-native
Perennial herb

BROMELIACEAE

2010 Barry Rice

2013 Simon J. Tonge

2010 Moorea Biocode

Tiquilia canescens var. pulchella Chocolate mtns. coldenia, Woody crinklemat

• rare native
Perennial herb, Shrub

EHRETIACEAE

Tonestus lyallii Lyall's goldenweed, Lyall's tonestus

• rare native
Perennial herb (rhizomatous)

2022 Dana York

Torreyochloa californica Sierra false mannagrass

native
Perennial grass (rhizomatous)

Tortella alpicola Alpine crisp moss

• rare native
Moss

Tortella fragilis Fragile tortella moss

native
Moss

2013 Scot Loring

Tortula californica California tortula moss

• rare native
Moss

2019 Neil Uelman

2013 Rob Weiss

2016 Neil Uelman

Townsendia parryi Parry's townsend daisy, Parry's townsendia

native
Perennial herb

2007 Eve Wills

2011 Ryan Batten

Tradescantia ohiensis Bluejacket

non-native
Perennial herb

COMMELINACEAE

2005 Louis-M. Landry

1998 Nick Kurzenko

Tragia ramosa Branched noseburn, Desert noseburn

• rare native
Perennial herb

2012 Keir Morse

2020 Matt Berger

Tragopogon hybridus Pasture goatsbeard

non-native
Annual herb

Tribolium obliterum Capetown grass

non-native
Perennial grass

2022 Irene Rosen

Trichocoronis wrightii Limestone bugheal

native
Annual herb

2015 Richard Spellenberg

2011 Karyn Lea Drennen

Trichocoronis wrightii var. wrightii Wright's trichocoronis

• rare native
Annual herb

2011 Karyn Lea Drennen

2015 Richard Spellenberg

2011 Karyn Lea Drennen

Trichodon cylindricus Trichodon moss

• rare native
Moss

Trichophorum clementis Yosemite bulrush

native
Perennial grasslike herb

2008 Steve Matson

Trichostema austromontanum ssp. compactum Hidden lake bluecurls, San jacinto bluecurls

• rare native
Annual herb

Trichostema austromontanum ssp. compactum

2012 Keir Morse

Trichostema micranthum Small flowered bluecurls, Smallflower bluecurls

• rare native
Annual herb

2016 Keir Morse

Trichostema simulatum Siskiyou bluecurls

native
Annual herb

2023 Keir Morse

Trifolium alexandrinum Egyptian clover

non-native
Annual herb

2013 Jake Ruygt

2018 Zoya Akulova

Trifolium andersonii ssp. andersonii Anderson's clover

• rare native
Perennial herb

2008 Steve Matson

Trifolium aureum Golden clover, Hop clover

non-native
Annual herb

2005 Louis-M. Landry

2007 Louis-M. Landry

Trifolium buckwestiorum Santa cruz clover

• rare native
Annual herb

2011 Dylan Neubauer

1997 Doreen L. Smith

Trifolium columbinum Olive clover

native
Annual herb

2017 David popp

2021 Dianne Lake

Trifolium dedeckerae Dedecker's clover

• rare native
Perennial herb

2009 Gary A. Monroe

Trifolium eriocephalum ssp. cusickii Cusick's clover

native
Perennial herb

Trifolium gymnocarpon Hollyleaf clover

native
Perennial herb

2012 Dean Wm. Taylor

Trifolium gymnocarpon ssp. plummerae Plummer's clover

• rare native
Perennial herb

2021 Sarah Tona

2012 Dean Wm. Taylor

Trifolium hybridum Alsike clover

non-native
Perennial herb

2008 Keir Morse

2015 Barry Breckling

2012 Zoya Akulova

Trifolium hydrophilum Saline clover

• rare native
Annual herb

2005 Dean Wm. Taylor

2005 Aaron Schusteff

Trifolium longipes ssp. oreganum Oregon clover

native
Perennial herb

2009 Dana York

2013 Dana York

Trifolium longipes ssp. shastense Longstalk clover

native
Perennial herb

2023 Alaine Arslan

2002 Gary A. Monroe

Trifolium monanthum ssp. grantianum Grant's carpet clover

native
Perennial herb

2015 Keir Morse

Trifolium monanthum ssp. parvum Small carpet clover

native
Perennial herb

2023 R.A. Chasey

Trifolium palmeri Southern island clover

• rare native
Annual herb

2011 Dylan Neubauer

Trifolium piorkowskii Piorkowski's clover

• rare native
Annual herb

2018 Al Keuter

Trifolium siskiyouense Siskiyou clover

• rare native
Perennial herb

Trifolium stellatum Star clover

non-native
Annual herb

2007 Luigi Rignanese

2006 Luigi Rignanese

Trifolium trichocalyx Monterey clover

• rare native
Annual herb

2011 Kerry Heise

Trifolium variegatum var. geminiflorum Small-flowered variegated clover

native
Annual herb

2023 Mike Russler

Trigonella corniculata Cultivated fenugreek

non-native
Annual herb

2007 Luigi Rignanese

Trigonella foenum-graecum Sicklefruit fenugreek

non-native
Annual herb

Tripterocalyx crux-maltae Lassen sand verbena, Lassen sandverbena

• rare native
Annual herb

2009 Gary A. Monroe

1993 Gary A. Monroe

Tripterocalyx micranthus Little sand verbena, Smallflower sandverbena

• rare native
Annual herb

2010 Ron Wolf

2005 James M. Andre

Triquetrella californica California triquetrella moss

• rare native
Moss

2004 John Game

2017 Neal Kramer

Trisetum flavescens Yellow oatgrass

non-native
Perennial grass

Triteleia clementina San clemente island triteleia

• rare native
Perennial herb (bulb)

2008 Kim M. Klementowski

2005 Dieter Wilken

Triteleia crocea var. crocea Yellow triteleia

• rare native
Perennial herb (bulb)

2023 Amy Rachkowski

Triteleia grandiflora Largeflower triteleia

• rare native
Perennial herb

2023 Amy Rachkowski

Triteleia hendersonii Henderson's triteleia

• rare native
Perennial herb (bulb)

2023 Amy Rachkowski

2000 Dianne Fristrom

Triteleia ixioides ssp. cookii Cook's triteleia

• rare native
Perennial herb (bulb)

2000 Joseph Dougherty/ecology.org

Triteleia ixioides ssp. unifolia Prettyface

native
Perennial herb

2018 David popp

2016 Debra L. Cook

Triteleia versicolor Pinto triteleia

native
Perennial herb

Tropidocarpum californicum King's gold

• rare native
Perennial herb

2015 Dean Wm. Taylor

2017 Robert E. Preston, Ph.D.

Tropidocarpum capparideum Caper fruited tropidocarpum, Caperfruit tropidocarpum

• rare native
Annual herb

2002 Dieter Wilken

2004 Laura Ann Eliassen

Tsuga heterophylla Western hemlock

native
Tree

2018 Claire Brown

2010 Keir Morse

2016 Zoya Akulova

Tuberaria guttata European frostweed, Tuberaria

non-native
Annual, Perennial herb

2013 David popp

2013 James Gonsman

2000 George W. Hartwell

Tuctoria greenei Awnless spiralgrass, Greene's tuctoria

• rare native
Annual grass

2023 Justin Chappelle

2008 Heather Davis

Tulipa clusiana Lady tulip

non-native
Perennial herb (bulb)

2007 Joseph Dougherty, M.D./ecology.org

Typha Xglauca

native
Perennial herb (aquatic)

TYPHACEAE

2016 Gerald Carr

Ulmus glabra Wych elm

non-native
Tree

ULMACEAE

2007 Louis-M. Landry

2013 Phil Pullen

Undaria pinnatifida Wakame

• invasive non-native
seaweed

ALARIACEAE

2018 Joe DiTomaso

Urochloa texana Texas signalgrass

native
Annual grass

Utricularia inflata Swollen bladderwort

non-native
Perennial herb

2006 Barry Rice

Utricularia intermedia Flat leaf bladderwort, Flat leaved bladderwort, Flatleaf bladderwort

• rare native
Annual herb

2018 Mary Merriman

2009 Barry Rice

2004 Barry Rice

Utricularia ochroleuca Yellowishwhite bladderwort

• rare native
Perennial herb

2007 George W. Hartwell

2009 Barry Rice

Utricularia subulata Zigzag bladderwort

non-native
Annual, Perennial herb

2006 Barry Rice

Vaccinium coccineum Siskiyou Mtns. huckleberry

• rare native
Shrub

2012 Aaron Arthur

2020 Stillwater Sciences

Vaccinium macrocarpon Cranberry

non-native
Shrub (stem succulent)

2010 Louis-M. Landry

2014 Joey Malone

2010 Louis-M. Landry

Vaccinium shastense ssp. nevadense Sierra Nevada huckleberry

native
Shrub

2015 Len Lindstrand III

2006 Dean Wm. Taylor

2015 Len Lindstrand III

Vachellia farnesiana var. farnesiana Sweet acacia

non-native
Tree

Vachellia farnesiana var. minuta Sweet acacia

non-native
Tree

Vahlodea atropurpurea Mountain hairgrass

• rare native
Perennial grass

2008 Sean B. Smith

Valeriana pubicarpa Mountain valerian

native
Perennial herb

VALERIANACEAE

2011 Steve Matson

Valerianella carinata Corn salad, European cornsalad

non-native
Annual, Perennial herb

VALERIANACEAE

2009 Phil Pullen

2016 David popp

Valerianella locusta Corn salad, Lamb lettuce, Lewiston cornsalad

non-native
Annual herb

VALERIANACEAE

2008 Steve Matson

2018 Steven Perry

Venidium fastuosum Monarch of the veld, cape daisy

non-native
Annual herb

2008 Louis-M. Landry

Verbascum bombyciferum Giant silver mullein

non-native
Annual, Biennial herb

2020 Jean Pawek

Verbascum olympicum Olympic mullein

non-native
Biennial, Perennial herb

2001 CDFA

Verbascum speciosum Showy mullein

non-native
Annual, Biennial herb

Verbena bonariensis var. conglomerata Purpletop vervain

non-native
Annual, Biennial herb

Verbena neomexicana Hillside vervain

native
Perennial herb

Verbena rigida Tuberous vervain

non-native
Perennial herb

Verbena scabra Rough vervain, Sandpaper vervain

native
Perennial herb

Veronica beccabunga European speedwell

non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

2011 Louis-M. Landry

Veronica chamaedrys Germander speedwell

non-native
Perennial herb

2011 Louis-M. Landry

Veronica filiformis Thread stalk speedwell, Threadstalk speedwell

non-native
Perennial herb

2002 Dean Wm. Taylor

2005 Doreen L. Smith

Veronica hederifolia Ivy leaved speedwell, Ivyleaf speedwell

non-native
Annual herb

2006 Luigi Rignanese

Veronica officinalis Common gypsyweed

non-native
Perennial herb

2008 Louis-M. Landry

2009 Barry Breckling

Veronica triphyllos Finger speedwell

non-native
Annual herb

2005 Penn Martin II

Viburnum opulus European cranberrybush , Guelder-rose

non-native
Shrub

VIBURNACEAE

2006 Dr. Amadej Trnkoczy

Viburnum rigidum Canary Laurustinus

non-native
Shrub

VIBURNACEAE

Vicia bithynica Bithynian vetch

non-native
Annual herb

2006 Luigi Rignanese

Vicia cracca Bird vetch

non-native
Perennial herb, Vine

2021 stephen rosenthal

2007 Louis-M. Landry

Vicia hassei Hasse's vetch

native
Vine

2023 R.A. Chasey

2016 Phil Johnson

2023 R.A. Chasey

Vicia lathyroides Pea vetch, Spring vetch

non-native
Annual herb, Vine

2009 Zoya Akulova

Vicia pannonica Hungarian vetch

non-native
Annual herb, Vine

2014 Luigi Rignanese (ssp. striata)

Vigna unguiculata Blackeyed pea, Cowpea, Southern pea

non-native
Annual herb

Viola howellii Howell's violet

• rare native
Perennial herb

2010 Ray Collett

2012 Aaron Arthur

Viola nephrophylla Leconte violet, Northern bog violet

native
Perennial herb

2010 Sierra Pacific Industries

2015 Sierra Pacific Industries

2015 John Doyen

Viola sororia Common blue violet

native
Perennial herb

2007 Dr. Amadej Trnkoczy

2010 Louis-M. Landry

2003 Joseph Dougherty/ecology.org

Viola tricolor Johnny jumpup, Wild pansy

non-native
Annual, Perennial herb

2007 Louis-M. Landry

2005 Dr. Amadej Trnkoczy

2010 Zoya Akulova

Viscum album European mistletoe

non-native
Shrub (parasitic)

VISCACEAE

2019 Susan McDougall

2007 Fran�ois Meignant

Vitex agnus-castus Lilac chastetree

non-native
Tree, Shrub

2023 Olesya Konovalova

2022 Andy Ford

2023 Olesya Konovalova

Vitis aestivalis Summer grape

non-native
Vine

2022 Andy Ford

Vitis arizonica Canyon grape

native
Vine, Shrub

2007 Jason E. Willand

2013 Jean Pawek

Vitis rupestris Sand grape

non-native
Vine, Shrub

Vitis vinifera Cultivated grape, Wine grape

non-native
Vine, Shrub

2020 Jennifer Mo

2014 Eric Wrubel

2005 Luigi Rignanese

Volutaria canariensis Canary island knapweed

non-native
Annual herb

Volutaria muricata Morocco knapweed

non-native
Annual herb

2016 Richard Spellenberg

Watsonia marginata Fragrant bugle lily, Watsonia

non-native
Perennial herb

2023 Leah Lord

Wislizenia refracta ssp. californica California jackass clover, Spectacle fruit

native
Annual herb

$Wislizenia refracta ssp. californica$

2011 Neal Kramer

$Wislizenia refracta ssp. californica$

2016 Neal Kramer

$Wislizenia refracta ssp. californica$

2014 Neal Kramer

Wislizenia refracta ssp. refracta Jackass clover, Spectacle fruit

• rare native
Annual herb

$Wislizenia refracta ssp. refracta$

2005 James M. Andre

$Wislizenia refracta ssp. refracta$

2005 James M. Andre

$Wislizenia refracta ssp. refracta$

2005 James M. Andre

Wolffia arrhiza Spotless watermeal, Water meal

native
Perennial herb

Wolffiella lingulata Mud midget, Tongueshape bogmat

native
Perennial herb

2018 Brian and Eileen Keelan

Wolffiella oblonga Mud midget, Saber bogmat

native
Perennial herb

Woodsia plummerae Plummer's cliff fern, Plummer's woodsia

• rare native
Fern (rhizomatous)

WOODSIACEAE

University and Jepson Herbaria

Xanthisma gracile Annual bristleweed

• rare native
Annual herb

2011 Keir Morse

Xanthisma junceum Rush like bristleweed

• rare native
Perennial herb

2004 Vince Scheidt

2021 W. Juergen Schrenk

2007 Vince Scheidt

Yucca baccata var. baccata Banana yucca, blue yucca

native
Shrub

2020 Matt Berger

2004 James M. Andre

2016 John Doyen

Yucca jaegeriana Eastern joshua tree

native
Shrub

2021 W. Juergen Schrenk

2020 David Greenberger

2021 W. Juergen Schrenk

Zeltnera arizonica

non-native
Annual herb

Zinnia elegans Elegant zinnia

non-native
Annual herb

2005 Luigi Rignanese

2006 Louis-M. Landry

2005 Luigi Rignanese

Zizania palustris var. interior Northern wildrice, Wild rice

non-native
Annual, Perennial grass

Ziziphus obtusifolia Lotebush

native
Shrub

2012 Keir Morse

Ziziphus obtusifolia var. canescens Gray crucillo, Graythorn, Grey leaved abrojo

native
Shrub

2012 Keir Morse

Zostera pacifica Pacific eel grass

native
Perennial herb

ZOSTERACEAE

2006 Doreen L. Smith

Zoysia japonica Korean lawngrass

non-native
Perennial grass