Abrupt-beaked Sedge: Carex abrupta
Black-and-white-scaled Sedge: Carex albonigra
Ample-leaved Sedge, Big-leaf Sedge: Carex amplifolia
Narrow-leaved Sedge: Carex angustata (Synonyms: Carex egregia, Carex eurycarpa, Carex oxycarpa)
Grassy-slope Arctic Sedge, Yellow-flowred Sedge: Carex anthoxanthea
Columbia Sedge: Carex aperta (Synonyms: Carex accedens, Carex accutina var. tenuior, Carex aperta var. umbrosa, Carex aperta var. viridans, Carex stylosa var. virens, Carex turgidula)
Water Sedge: Carex aquatilis var. aquatilis (Synonyms: Carex acutinella, Carex interimus, Carex pachystoma, Carex suksdorfii, Carex variabilis)
Sitka Sedge, Water Sedge: Carex aquatilis var. dives (Synonyms: Carex aquatilis var. sitchensis, Carex dives, Carex howellii, Carex panda, Carex sitchensis)
Northern Clustered Sedge: Carex arcta (Synonyms: Carex canescens ssp. polystachya, Carex canescens var. oregana, Carex heleonastes var. scabriuscula, Carex kunzei)
Sand Sedge: Carex arenaria
Awned Sedge, Wheat Sedge: Carex atherodes
Long-bract Sedge, Slender-beak Sedge: Carex athrostachya
Golden Sedge, Pumpkin Sedge: Carex aurea
Whiteroot Sedge: Carex barbarae
Bebb's Sedge: Carex bebbii
Bolander's Sedge: Carex bolanderi (Synonyms: Carex deweyana, Carex deweyana var. bolanderi)
Brainerd's Sedge: Carex brainerdii
Plains Oval Sedge, Short-beaked Sedge: Carex brevior (Synonyms: Carex festucaceae var. brevior, Carex straminea var. brevior)
Bronze Sedge, Leatherleaf Sedge, New Zealand Copper Sedge, Red Fox Sedge, Silver-spiked Sedge: Carex buchananii
Brown Bog Sedge, Buxbaum's Sedge: Carex buxbaumii
California Sedge: Carex californica
Grey Sedge, Silver Sedge, Silvery Sedge: Carex canescens ssp. canescens (Synonyms: Carex canescens var. robustina, Carex canescens var robustior, Carex subloliacea)
Cordroot Sedge, Creeping Sedge, Rope-root Sedge: Carex chordorrhiza
Coiled Sedge: Carex circinata
Frosted Curls: Carex comans
Bearded Sedge, Bristly Sedge: Carex comosa
Northwestern Sedge, Tetrastigmatic Sedge: Carex concinnoides
Crawford's Sedge: Carex crawfordii
Cusick's Sedge: Carex cusickii (Synonym: Carex obovoidea, Carex teretiuscula var. ampla)
Mountain Mat Sedge, Northern Sedge: Carex deflexa var. boottii (Synonyms: Carex globosa var. brevipes, Carex rossii var. brevipes)
Dense Sedge: Carex densa (Synonyms: Carex breviligulta, Carex brongniartii, Carex chrysoleuca, Carex dudleyi, Carex vicaria, Carex vicaria var. costata, Carex vulpinoidea var. vicaria)
Dewey's Sedge: Carex deweyana var. deweyana
Leer's Sedge: Carex divulsa ssp. leersii
Bristly Sedge, Muricate Sedge, Prickly Sedge, Star Sedge, Stellate Sedge: Carex echinata ssp. echinata (Synonyms: Carex angustior, Carex ormantha)
Coastal Star Sedge: Carex echinata ssp. phyllomanica (Synonym: Carex phyllomanica)
Engelmann's Sedge: Carex engelmannii (Synonyms: Carex breweri var. paddoensis, Carex engelmannii var. paddoensis, Carex paddoensis)
Big Inflated Sedge, Western Inflated Sedge: Carex exsiccata (Synonym: Carex vesicaria var. major)
Feta Sedge, Greensheath Sedge, Green-sheath Sedge, Green-sheathed Sedge: Carex feta (Synonym: Carex straminea var. mixta)
Cleft Sedge: Carex fissuricola
Fragile-sheath Sedge: Carex fracta
Elk Sedge, Geyer's Sedge: Carex geyeri
Olney's Hairy Sedge, Wonderwoman Sedge: Carex gynodynama
Hall's Sedge: Carex halliana (Synonym: Carex oregonensis)
Harford's Sedge, Monterey Sedge: Carex harfordii
False Golden Sedge, Salt Sedge: Carex hassei (Synonyms: Carex garberi, Carex saliniformis)
Cloud Sedge, Hyden's Sedge: Carex haydeniana (Synonyms: Carex festiva var. decumbens, Carex haydenii, Carex macloviana ssp. haydeniana, Carex nubicola)
Henderson's Sedge, Timber Sedge: Carex hendersonii
Fuzzy Wuzzy Sedge, Hairy-leaved Sedge: Carex hirsutella (Synonyms: Carex complanata, Carex complanata var. hirsuta)
Hairy Sedge: Carex hirta
Hood's Sedge: Carex hoodii
Bottlebrush Sedge, Porcupine Sedge: Carex hystericina
Sheep Sedge, Small-head Sedge, Small-headed Sedge: Carex illota
Weak-veined Sedge: Carex infirminervia (Synonym: Carex deweyana)
Long-stolon Sedge, Long-rhizome Sedge: Carex inops ssp. inops (Synonyms: Carex pensylvanica, Carex pensylvanica var. vespertina, Carex verecunda, Carex vespertina)
Smooth-beak Sedge, Smooth-beaked Sedge: Carex integra
Inland Sedge: Carex interior (Synonym: Carex scirpoides)
Greenfruit Sedge, Green-fruited Sedge, Interrupted Sedge: Carex interrupta (Synonym: Carex interrupta var. distenta)
Jones' Sedge: Carex jonesii (Synonym: Carex nervina var. jonesii)
Few-ribbed Sedge, Lakeshore Sedge, Mountain Shore Sedge: Carex kelloggii var. impressa (Synonyms: Carex interrupta var. impressa, Carex lenticularis var. impressa, Carex limnaea, Carex paucicostata)
Kellogg's Sedge, Lakeshore Sedge: Carex kelloggii var. kelloggii (Synonyms: Carex hindsii var. brevigluma, Carex lenticularis var. lenticularis, Carex lenticularis var. lipocarpa, Carex lenticularis var. paullifructus, Carex vulgaris var. lipocarpa)
Coastal Shore Sedge, Lakeshore Sedge: Carex kelloggii var. limnophila (Synonyms: Carex goodenovii var. limnophila, Carex hindsii, Carex lenticularis var. limnophila, Carex vulgaris var. limnophila)
Klamath Sedge: Carex klamathensis
Japanese Sedge: Carex kobomugi
Smoothstem Sedge, Smooth-stemmed Sedge: Carex laeviculmis (Synonym: Carex deweyana ssp. sparsiflora)
Slender Woolly Sedge, Wiregrass Sedge, Woollyfruit Sedge: Carex lasiocarpa (Synonyms: Carex lanuginosa, Carex lanuginosa var. americana, Carex lasiocarpa ssp. americana, Carex lsiocarpa var. americana)
Eggbract Sedge, Hare Sedge, Oval Broom Sedge, Oval Sedge: Carex leporina (Synonym: Carex ovalis)
Bog Hare Sedge, Sierra Hare Sedge: Carex leporinella
Bristle-stalked Sedge, Bristlystalked Sedge, Delicate Sedge, Jelly Bean Sedge: Carex leptalea (Synonyms: Carex jimcalderi, Carex leptalea ssp. leptalea, Carex leptalea ssp. pacifica, Carex leptalea var. harperi, Carex leptalea var. tayloris)
Dewey's Sedge, Short-scaled Sedge, Slenderfoot Sedge, Taperfruit Shortscale Sedge: Carex leptopoda (Synonyms: Carex deweyana, Carex deweyana ssp. leptopoda, Carex deweyana var. leptopoda)
Mud Sedge: Carex limosa
Livid Sedge, Pale Sedge: Carex livida (Synonyms: Carex limosa var. livida, Carex livida var. grayana, Carex livida var. radicaulis, Carex livida var. rufiniformis)
Green-and-white Sedge, Long's Sedge: Carex longii
Spring Sedge, Woodrush Sedge: Carex luzulina (Synonyms: Carex ablata, Carex luzulina var. ablata, Carex luzulina var. luzulina, Carex owyheensis)
Lyngbye's Sedge: Carex lyngbyei (Syonyms: Carex cryptocarpa, Carex lyngbyei, var. cryptocarpa, Carex lyngbyei var. robusta, Carex salina var. robusta)
Bighead Sedge, Big-head Sedge, Big-headed Sedge, Largehead Sedge: Carex macrocephala (Synonym: Carex anthericoides, Carex macrocephala var. macrocephala)
Alaska Long-awn Sedge, Large-awn Sedge, Long-awn Sedge: Carex macrochaeta
Poor Sedge: Carex magellanica ssp. irrigua (Synonyms: Carex limosa var. irrigua, Carex magellanica var. irrigua, Carex paupercula)
Mendocino Sedge: Carex mendocinensis (Synonym: Carex debiliformis)
Merten's Sedge: Carex mertensii (Synonym: Carex columbiana)
Timberline Sedge: Carex micropoda (Synonyms: Carex crandallii, Carex jacobi-peteri, Carex pyrenaica ssp. micropoda, Carex pyrenaica var. mondsii)
Small-wing Sedge, Small-winged Sedge: Carex microptera (Synonyms: Carex festivella, Carex limnophila, Carex macloviana ssp. festivell, Carex macloviana var. microptera, Carex microptera var. crassinervia, Carex microptera var. limnophila)
Many-stemmed Sedge, Stick Sedge: Carex multicaulis
Spike Sedge, Spikenard Sedge: Carex nardina (Synonyms: Carex elyniformis, Carex hepburnii, Carex nardina ssp. hepburnii, Carex nardina var. atriceps, Carex nardina var. hepburnii, Carex stantonensis)
Nebraska Sedge: Carex nebrascensis (Synonyms: Carex jamesii, Carex nebrascensis var. eruciformis, Carex nebrascensis var. praevia, Carex nebrascensis var. ultriformis)
Sierra Sedge: Carex nervina
Alpine Nerve Sedge, Alpine Nerved Sedge, Veined Sedge: Carex neurophora (Synonym: Carex vernacula var. hobsonii)
Black Alpine Sedge: Carex nigricans
Naked Sedge, Torrent Sedge: Carex nudata (Synonyms: Carex acutina, Carex bishallii, Carex hallii, Carex nudata var. anomala, Carex suborbiculata, Carex tenacissima)
Slough Sedge: Carex obnupta (Synonym: Carex magnifica)
Blunt Sedge: Carex obtusata
Furrowed Broomsedge, Many-rib Sedge: Carex pachycarpa (Synonym: Carex multicostata)
Chamisso Sedge, Starry Sedge, Thick-head Sedge, Thick-headed Sedge: Carex pachystachya (Synonyms: Carex festiva var. gracilis, Carex festiva var. pachystachya, Carex macloviana, Carex macloviana ssp. pachystachya, Carex macloviana var. pachystachya, Carex pachystachya var. gracilis, Carex pachystachya var. monds-coulteri)
Pale Green Sedge: Carex pallescens (Synonym: Carex pallescens var. neogaea)
Sand Sedge, Sanddune Sedge: Carex pansa (Synonym: Carex arenicola ssp. pansa)
Few-flowered Sedge: Carex pauciflora
Woolly Sedge: Carex pellita (Synonym: Carex lanuginosa)
Pendulous Sedge: Carex pendula
Liddon's Sedge: Carex petasata (Synonym: Carex liddonii)
Alpine Hare Sedge, Dunhead Sedge, Mountain Hare Sedge: Carex phaeocephala (Synonym: Carex eastwoodiana)
Black Bog Sedge, Many-flower Sedge: Carex pluriflora (Synonym: Carex rariflora var. pluriflora)
Black Creeper Sedge, Clustered Field Sedge: Carex praegracilis
Meadow Sedge, Northern Meadow Sedge: Carex praticola (Synonyms: Carex piperi, Carex platylepis, Carex pratensis)
Presl's Sedge: Carex preslii
Asian Sand Sedge: Carex pumila
Raynolds' Sedge: Carex raynoldsii (Synonym: Carex lyallii)
Knotsheath Sedge, Retrose Sedge: Carex retrorsa
Ross' Sedge: Carex rossii (Synonyms: Carex brevipes, Carex deflexa ssp. media, Carex deflexa var. farwellii, Carex deflexa var. rossii, Carex diversistylis, Carex farwellii, Carex novae-angliae var. rossii)
Limestone Sedge, Rock Sedge, Russet Sedge: Carex saxatilis (Synonyms: Carex ambusta, Carex compacta, Carex miliaris, Carex physocarpa, Carex xphysocarpoides, Carex rhomalea, Carex saxatilis ssp. laxa)
Siskiyou Sedge: Carex scabriuscula (Synonym: Carex gigas)
Western Singlespike Sedge, Western Single-spiked Sedge: Carex scirpoidea ssp. pseudoscirpoidea (Synonyms: Carex pseudoscirpoidea, Carex scirpoidea var. pseudoscirpoidea)
Alaskan Singlespike Sedge: Carex scirpoidea ssp. stenochlaena (Synonyms: Carex scirpoidea var. stenochlaena, Carex stenochlaena)
Pointed Broomsedge, Pointed Broom Sedge: Carex scoparia (Synonym: Carex scoparia var. scoparia)
Mountain Sedge: Carex scopulorum var. braceosa (Synonyms: Carex campylocarpa, Carex gymnoclada)
Serpentine Sedge: Carex serpenticola
Saw-toothed Sedge, Two-tooth Sedge: Carex serratodens (Synonym: Carex bifida)
Analogue Sedge, Short-beaked Sedge: Carex simulata
Showy Sedge: Carex spectabilis (Synonyms: Carex invisa, Carex nigella, Carex spectabilis var. superba, Carex tolmiei, Carex tolmiei var. invisa)
Awl-fruit Sedge, Sawbeak Sedge: Carex stipata var. stipata (Synonyms: Carex stipata var. crassicurta, Carex stipata var. subsecuta)
Long-style Sedge: Carex stylosa (Synonyms: Carex beringiana, Carex nigritella, Carex stylosa var. nigritella)
Smallbract Sedge, Small-bracted Sedge: Carex subbracteata
Brown Sedge, Pale Broom Sedge, Rusty Sedge, Rusty Slender Sedge: Carex subfusca (Synonyms: Carex macloviana ssp. subfusca, Carex teneraeformis, Carex teneriformis)
European Woodland Sedge: Carex sylvatica
Lake Tahoe Sedge, Tahoe Sedge: Carex tahoensis (Synonym: Carex eastwoodiana)
Blunt Broom Sedge, Tribulation Sedge: Carex tribuloides
Foothill Sedge: Carex tumulicola
Lateral Sedge, One-sided Sedge: Carex unilateralis
Beaked Sedge, Inflated Sedge, Northwest Territory Sedge, Southern Beaked Sedge: Carex utriculata (Synonyms: Carex laevirostris, Carex rhynchophysa, Carex rostrata, Carex rostrata var. utriculata)
Valley Sedge: Carex vallicola
Blister Sedge, Inflated Sedge, Oxbow Sedge: Carex vesicaria (Synonym: Carex vesicaria var. vesicaria)
Green Sedge, Greenish Sedge, Little Green Sedge: Carex viridula ssp. viridula (Synonyms: Carex chlorophila, Carex irregularis, Carex oederi, Carex oederi var. pumila, Carex oederi var. viridula, Carex pulchella, Carex scandinavica, Carex serotina, Carex subglobosa, Carex viridula var. viridula)
Fox Sedge: Carex vulpinoidea (Synonyms: Carex microsperma, Carex multiflora, Carex multiflora var. microsperma, Carex scabrior, Carex vulpinoidea var. microsperma, Carex vulpinoidea var. pycnocephala, Carex vulpinoidea var. scabrior, Carex vulpinoidea var. segregata, Carex vulpinoidea var. setacea, Carex vulpinoidea var. vulpinoidea)
Whitney's Sedge: Carex whitneyi
Short-stemmed Sedge, Zika's Sedge: Carex zikae (Synonyms: Carex deflexa var. brevicaulis)