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Gypsum and Plant Species: A Marvel of Cuatro Ciénegas and the Chihuahuan Desert

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Plant Diversity and Ecology in the Chihuahuan Desert

Part of the book series: Cuatro Ciénegas Basin: An Endangered Hyperdiverse Oasis ((CUCIBA))

Abstract

Soils rich in gypsum (CaSO4·2H2O) are both a challenge for plant growth and a trigger for plant evolution. Plants that grow only on this type of soils are known as gypsophiles, but there are also generalists that grow on and off gypsum, known as gypsovags. The Cuatro Ciénegas municipality (CCM) in Coahuila is characterized by a complex mosaic of soils with different gypsum contents, ranging from massive, ancient gypsum evaporite bedrock, crystalline selenite, and anhydrite to very recent formations of secondary evaporites, often mixed with other salts, and gypsum dunes. These exposures of gypsum (gypsum outcrops) host a species-rich gypsophilic flora that has mostly been described in only the last 50 years, and aside from the well-known gypsum deposits of Cuatro Ciénegas Basin (CCB) is still imperfectly known. To date there is no available comprehensive synthesis for where the gypsum outcrops occur within CCM or for the vascular plant species growing on them. In this chapter we use remote sensing techniques to reveal botanically unexplored gypsum outcrops and we present a checklist for the vascular plant species currently known to occur on gypsum outcrops within CCM. We report 297 species in 187 genera and 60 families of vascular plants growing on gypsum outcrops in the CCM, of which 31 species are gypsophiles, five are halogypsophiles (species that grow on soils with a mixture of sodium chloride and gypsum), and three are either gypsophiles or halogypsophiles; 15 are endemic to the municipality. Our results demonstrate that the method presented here for detecting potential gypsum outcrops is powerful, that CCM has an outstanding number of potential gypsum outcrops, many of which are unexplored botanically. The relatively high number of gypsophiles in CCM and the fact that new taxa continue to be discovered clearly indicate the need for continued botanical exploration of gypsum environments in the Cuatro Ciénegas region and in Coahuila and the Chihuahuan Desert as a whole.

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Acknowledgments

We thank Héctor M. Hernández for allowing us to use his database on Cactaceae and Tom Wendt for downloading and sharing the information from LL and TEX. We thank George Hinton for help with demonstrating how to detect gypsum using online imagery. We thank the National Geographic Society, the US National Science Foundation (DEB 1054539 & DEB 1352907), and Oberlin College for funding. We greatly appreciate the careful revision and suggestions by the editors of this volume.

Author information

Authors and Affiliations

  1. Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, UNAM, Mexico City, Mexico

    Helga Ochoterena, Hilda Flores-Olvera & Carlos Gómez-Hinostrosa

  2. Department of Biology, Oberlin College, Oberlin, OH, USA

    Michael J. Moore

Authors
  1. Helga Ochoterena
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  2. Hilda Flores-Olvera
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  3. Carlos Gómez-Hinostrosa
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  4. Michael J. Moore
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Corresponding author

Correspondence to Helga Ochoterena .

Editor information

Editors and Affiliations

  1. Departamento de Ecología de la Biodiversidad, Instituto de Ecología, Universidad Nacional Autónoma de México, UNAM, Mexico City, Mexico

    Maria C. Mandujano

  2. Departmento Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, UNAM, Mexico City, Mexico

    Irene Pisanty

  3. Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, UNAM, Mexico City, Mexico

    Luis E. Eguiarte

Appendix

Appendix

Checklist of the vascular plant species growing on gypsum soils in the Cuatro Ciénegas municipality (CCM) based on georeferenced specimens and literature. Acronyms related to soil fidelity: G = Gypsophile; HG = Halogypsophile; HGV = Halogypsovag; GV = Gypsovag. Acronyms related to endemism: CCE = Endemic to Cuatro Ciénegas municipality; CDE = Endemic to the Chihuahuan Desert (Sensu Henrickson & Straw 1976). For the enlisted specimens, only the first main collector´s lastname is cited to save space. Bibliographic references: 1= Pinkava (1984); 2= Villarreal-Quintanilla and Encina-Domínguez (2005); 3= Nesom (1981); 4= Urbatsch & Roberts (2004); 5= García-Morales et al. (2014); 6= Johnston (1939); 7= Johnston (1943); 8= Levin (2002); 9= Morales García (2018); 10= Atwood and Pinkava (1977); 11= Turner (2004).

Pteridophytas

PTERIDACEAE

  • Astrolepis cochisensis (Goodd.) D.M. Benham & Windham [GV]. Cole 3749A (ASU).

  • Astrolepis integerrima (Hook.) D.M. Benham & Windham [GV]. Engard 320 (DES).

  • Cheilanthes hookeri Domin [GV]. Chiang 7635 (LL); Daniel 532B (ASU).

  • Notholaena bryopoda Maxon [G]. Henrickson 12117-5 (LL); Moore 2574 (MEXU, TEX)

  • Notholaena greggii (Mett. ex Kuhn) Maxon [GV]. Cole 3750 (ASU). [CDE].

SELAGINELLACEAE

  • Selaginella ribae Valdespino [GV]. Moore 1994 (MEXU, TEX)

  • Selaginella wrightii Hieron. [GV]. Lehto 5497 (ASU).

  • Selaginella sp. Moore 2573 (MEXU, TEX).

Gymnospermae

EPHEDRACEAE

  • Ephedra pedunculata Engelm. ex S. Watson [GV]. Henrickson 23183 (TEX); Lehto 5496 (ASU); Meyer s.n. (ASU).

  • 1 Ephedra trifurca Torr. ex S. Watson [GV]. Henrickson 12540 (TEX); Lehto 5264 (ASU).

Angiospermae

ACANTHACEAE

  • Carlowrightia serpyllifolia A. Gray [GV]. Chiang 7630 (ASU, LL, MEXU); Daniel 218 (MEXU), 530 (ASU, MEXU); Henrickson 20399 (TEX). [CDE].

  • Justicia coahuilana T.F. Daniel [GV]. Johnston 7162 (GH); Lehto 5485 (ASU). [CCE].

  • Ruellia parryi A. Gray [GV]. Henrickson 24432 (TEX). [CDE].

AIZOACEAE

  • Sesuvium sessile Pers. [GV]. Pinkava 5071 (ASU).

  • 1 Sesuvium verrucosum Raf. [HGV]. Chiang 7618 (LL, MEXU), 7634 (LL, MEXU), 7648 (LL), 9156A (LL, MEXU); Henrickson 14279 (TEX), 18742 (MEXU, TEX).

AMARANTHACEAE

  • Amaranthus blitoides S. Watson [GV]. Henrickson 14311 (TEX); Pinkava P5219A (ASU).

  • Amaranthus retroflexus L. [GV]. Henrickson 9999 (TEX).

  • Froelichia arizonica Thornber ex Standl. [GV]. Henrickson 12558 (MEXU); Pinkava 5204 (ASU), 5237 (ASU), 5954 (ASU).

  • 2 Tidestromia gemmata I.M. Johnst. [GV]. [CDE].

  • Tidestromia lanuginosa (Nutt.) Standl. [GV]. Henrickson 17449 (MEXU, TEX); Pinkava P5051 (ASU).

  • 1,2 Tidestromia rhizomatosa I.M. Johnst. [G, HG]. Chiang 7610A (TEX); Flores 1653 (MEXU, TEX), 1815 (MEXU, TEX); Henrickson 14308-3 (TEX), 14450-7 (TEX), 17455-4 (TEX), 20406 (ASU); Moore 1472 (MEXU, TEX), 2857 (MEXU, TEX). [CCE].

  • Tidestromia suffruticosa (Torr.) Standl. [GV]. Pinkava P3757 (ASU). [CDE].

  • Tidestromia tenella I.M. Johnst. [GV]. Henrickson 17438 (TEX), 17453 (TEX), 18741 (TEX). [CDE].

ANACARDIACEAE

  • Pistacia mexicana Kunth [GV]. Pinkava P13086 (ASU).

  • Rhus virens Lindh. ex A. Gray [GV]. Pinkava P13059 (ASU).

  • Toxicodendron radicans (L.) Kuntze [GV]. Pinkava 3857 (ASU).

APOCYNACEAE

  • Asclepias oenotheroides Schltdl. & Cham. [GV]. Henrickson 15921 (MEXU).

  • Mandevilla macrosiphon (Torr.) Pichon [GV]. Henrickson 24427 (TEX)

  • Metastelma barbigerum Scheele [GV]. Pinkava 5947 (ASU).

  • Metastelma pringlei A. Gray [GV]. Cole 3599A (MEXU); Henrickson 20400 (MEXU, TEX).

  • Metastelma sp. Moore 2567 (MEXU, TEX).

  • Sarcostemma cynanchoides Decne. [GV]. Henrickson 12554 (MEXU, TEX); Lehto 5269 (ASU).

ASPARAGACEAE

  • Agave asperrima Jacobi [GV]. Pinkava 5257 (DES).

  • Agave lechuguilla Torr. [GV]. Pinkava 3758 (ASU).

  • Dandya purpusii (Brandegee) H.E. Moore [GV]. Henrickson 24434 (TEX). [CDE].

  • Dasylirion cedrosanum Trel. [GV]. Bogler 683 (MO); Engard 293 (DES); Pinkava 3830 (DES), 5003 (DES), 5032 (ASU, DES), 5277 (DES), 5728 (DES).

  • 1 Dasylirion leiophyllum Engelm. ex Trel. [GV]

  • Hesperaloë funifera (K. Koch) Trel. [GV]. Gentry 23138 (DES).

  • Yucca thompsoniana Trel. [GV]. García 8116 (MEXU), 8117 (MEXU). [CDE].

  • Yucca torreyi Schafer [GV]. Leverich 4 (TEX).

  • 1 Yucca treculeana Carrière [GV]. Pinkava 5018 (DES), 5255 (ASU, DES), 5548 (ASU), P5270 (ASU).

ASTERACEAE

  • 1 Baccharis neglecta Britton [GV]. Daniel 680 (ASU).

  • Baccharis salicina Torr. & A. Gray [GV]. Henrickson 12560 (LL).

  • 1 Bahia absinthifolia Benth. [GV]. Pinkava 5273 (ASU).

  • Borrichia frutescens (L.) DC. [GV]. Rodríguez 1130 (MEXU).

  • Brickellia glutinosa A. Gray [GV]. Pinkava 13099P (ASU). [CDE].

  • Chaetopappa pulchella Shinners [GV]. Johnston 7151 (GH). [CDE].

  • Chrysactinia mexicana A. Gray [GV]. Flores 1816 (MEXU, TEX).

  • Cirsium coahuilense G.B. Ownbey & Pinkava [GV]. Henrickson 7957 (ARIZ, LL, MEXU, TEX); Nesom 7045 (NY), 7050 (NY, OBI); Pinkava 5075 (ASU, US, ASU, MEXU), 50667 (MEXU), P5075 (ASU); Wendt 658 (ASU). [CDE].

  • Conoclinium betonicifolium (Mill.) R.M. King & H. Rob. [GV]. García 8119 (MEXU); Henrickson 7966 (ASU, LL, MEXU); Pinkava 3725 (ASU), 5076 (ASU); Wendt 657 (LL).

  • Dicranocarpus parviflorus A. Gray [G]. Moore 1960 (MEXU, TEX), 2559 (MEXU, TEX).

  • 1,2 Erigeron cuatrocienegensis G.L. Nelson [G]. Lehto 5511 (NY); Pinkava P3849 (ASU), P5511 (ASU). [CCE].

  • 1,3 Erigeron pinkavii Turner [G]. [CDE].

  • Flaveria chlorifolia A. Gray [GV]. Brown s.n. (ASU); Chiang 9159 (TEX), 9164 (LL); Flores 1832 (MEXU, TEX); García 8118 (MEXU); Henrickson 7958 (ARIZ, ASU, LL, NMC), 15575 (LL); Villarreal 3193 (MEXU). [CDE].

  • 2 Flaveria palmeri J.R. Johnst. [GV]. Henrickson 20413 (MEXU). [CDE].

  • 1 Flaveria trinervia (Spreng.) C. Mohr [GV]. Meyer 8 (ASU).

  • Gaillardia candelaria B.L. Turner var. mikemoorei B.L. Turner [G]. Moore 2000 (MEXU, TEX). [CDE].

  • 1,2 Gaillardia gypsophila B.L. Turner [HG]. Henrickson 12544 (LL); Moore 1955 (MEXU, TEX); Turner 6188 (TEX). [CCE].

  • Gaillardia henricksonii B.L. Turner [G]. Moore 2575 (MEXU, TEX). [CDE].

  • Gochnatia hypoleuca (DC.) A. Gray [GV]. Moore 2583 (MEXU, TEX).

  • Xylothamia triantha (S.F. Blake) G.L. Nesom [GV]. Chiang 7615 (LL, MEXU, NY); Iltis 25C (TEX), 25E (MEXU); Pinkava P3645 (ASU). [CDE].

  • 2,4 Xylothamia truncata G.L. Nesom [G]. Nesom 5254 (TEX). [CCE]

  • Haploësthes greggii A. Gray var. greggii [GV]. Moore 1476 (MEXU, TEX). This species prefers gypsum.

  • Haploësthes hintoniana B.L. Turner [G]. Moore 2001 (MEXU, TEX). [CDE].

  • 1,2 Haploësthes robusta I.M. Johnst. [HG]. Barrie 370 (MEXU); Bogler 100 (MEXU); Engard 289 (DES); Flores 1829 (MEXU, TEX); Henrickson 7959 (ASU, LL, MEXU, NMC), 17440 (ARIZ, MEXU, SRSC, TEX); Moore 2852 (MEXU, TEX); Pinkava 5034 (ASU); Powell 2619 (NY); Wendt 663 (LL, MEXU); White 1923 (ARIZ, GH, MICH). [CCE].

  • Helianthus paradoxus Heiser subsp. cuatrocienegensis R.C. Sivinski [HG]. Pinkava 4111 (ASU). [CCE].

  • 1 Isocoma coronopifolia (A. Gray) Greene [GV]. Engard 294A (DES), 294B (DES); Flores-Olvera 1825 (MEXU, TEX); Henrickson 12539 (LL, MEXU); Leverich 2B (TEX); Pinkava 3727 (ASU).

  • 1 Isocoma drummondii (Torrey & A. Gray) Greene [GV]. Pinkava 5253 (ASU).

  • Palafoxia texana DC. [GV]. Pinkava 5946 (ASU).

  • Pectis angustifolia Torr. [GV]. Pinkava 3742 (ASU), 5220 (ASU).

  • Perityle coahuilensis A.M. Powell [GV]. Pinkava P13099A (ASU). [CDE].

  • Porophyllum scoparium A. Gray [GV]. Chiang 7641 (LL); Pinkava 5488 (ASU).

  • 1 Pseudoclappia arenaria Rydb. [HGV]. Henrickson 15909A (TEX); Pinkava 5066 (ASU); Rodríguez 1353 (MEXU). [CDE].

  • Psilostrophe tagetina (Nutt.) Greene [GV]. Moore 2578 (MEXU, TEX).

  • Sanvitalia ocymoides DC. [GV]. Rodríguez 1124 (MEXU).

  • 1,2 Sartwellia mexicana A. Gray [G]. Chiang 7614 (MEXU, NY); Henrickson 17435A (TEX 86177); Moore 1470 (MEXU, TEX), 1958 (MEXU, TEX); Pinkava 5022 (ASU), 5073 (ASU), 5545 (ASU). [CDE]

  • Sartwellia puberula Rydb. [G]. Moore 2582 (MEXU, TEX), 2862 (MEXU, TEX). [CDE]

  • Sidneya tenuifolia E.E. Schill. & Panero [GV]. Pinkava P13096 (ASU).

  • Simsia calva (A. Gray & Engelm.) A. Gray [GV]. Lehto P5233 (NY); Pinkava 5203 (ASU), 5233 (ASU).

  • 2 Solidago gypsophila G.L. Nesom [G]. [CCE].

  • Sonchus oleraceus L. [GV]. Pinkava 5063 (ASU), 5210 (ASU).

  • Thelesperma cf. longipes A. Gray [GV]. Moore 1998 (MEXU, TEX).

  • Thelesperma megapotamicum (Spreng.) Kuntze [GV]. Pinkava P13081 (ASU).

  • 2 Thymophylla gypsophila (B.L. Turner) Strother [G]. Moore 1996 (MEXU, TEX); Turner 6172 (TEX, UC). [CDE].

  • Thymophylla micropoides (DC.) Strother [GV]. Pinkava 5188 (ASU), P5239 (ASU); Pinkava 5952 (DES).

  • Thymophylla pentachaeta (DC.) Small [GV]. Pinkava 5217 (ASU), 5510 (ASU).

  • Trixis californica Kellogg. [GV]. Pinkava 5184 (ASU).

  • 1,2 Varilla mexicana A. Gray var. gypsophila [G]. Pinkava 5260 (ASU), P13105 (ASU); Smith 22157 (TEX); Johnston 10337 (ASU, MEXU); Leverich 1 (MEXU); Marroquín s.n. (MEXU); Moore 2018 (MEXU, TEX), 2551 (MEXU, TEX); Rodríguez 1162 (MEXU). [CDE].

  • Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray [GV]. Moore 2020 (MEXU, TEX).

  • Viguiera dentata (Cav.) Spreng. var. longibracteata B.L. Turner [G]. Moore 2548 (MEXU, TEX).

  • 1 Xanthisma gypsophilum (B.L. Turner) D.R. Morgan & R.L. Hartm. [G]. Chiang 9158 (LL), 7617D (LL); Flores 1817 (MEXU, TEX); Henrickson 12542 (LL), 15920 (TEX), 17452 (MEXU, TEX); Moore 1466 (MEXU, TEX), 2579 (MEXU, TEX); Pinkava 5027 (ASU), 5265 (ASU); Turner 6052 (MEXU, TEX,). [CDE].

  • 2 Xanthisma johnstonii (S.F. Blake) D.R. Morgan & R.L. Hartm. [HG]. [CDE].

  • 1,2 Xanthisma restiforme (B.L. Turner) D.R. Morgan & R.L. Hartm. [G]. Chiang 7613 (MEXU, TEX), 7653 (LL, MEXU); Flores 1818 (MEXU, TEX); Henrickson 12538 (ARIZ, LL, MEXU, TEX), 17451 (MEXU, TEX); Moore 1471 (MEXU, TEX); Pinkava 3855 (ASU), 5023 (ASU), 5035 (ASU), 5268 (ASU), 13101 (ASU); Turner 6063 (LL); Collector unknown 3806 (NY). [CCE].

  • Xanthisma spinulosum (Pursh) D.R. Morgan & R.L. Hartm. [GV] Henrickson 12546 (LL, MEXU).

  • Xanthium strumarium L. [GV]. Pinkava 5506 (ASU); Zarate E13 (MEXU).

BIGNONIACEAE

  • 1 Chilopsis linearis (Cav.) Sweet. [GV]. Henrickson 12549 (TEX); Keil 5543 (ASU); Reeves P13106 (ASU); Turner 6194 (TEX).

BORAGINACEAE

  • Cordia parvifolia A. DC. [GV]. Wendt 7691 (LL, MEXU).

  • Heliotropium curassavicum L. [HGV]. Henrickson 7952 (ARIZ, ASU, MEXU, TEX); Lehto 5068 (ASU).

  • Omphalodes aliena A. Gray ex Hemsl. [GV]. Neff 92-3-27-1 (MEXU, TEX).

BRASSICACEAE

  • Nerisyrenia camporum (A. Gray) Greene [GV]. Fuentes 102 (MEXU); Lehto 196 (ASU), 5070 (ASU).

  • 1 Nerisyrenia castillonii Rollins [G]. Fuentes 103 (ARIZ, MEXU); Lehto 5522 (ASU); Moore 1959 (MEXU, TEX), 2869B (MEXU, TEX); Pinkava P5049 (ASU), P13115 (ASU). [CDE].

  • 1,2 Nerisyrenia incana Rollins [G] Chiang 7616 (LL), 7644 (LL); Flores 1820 (MEXU, TEX), 1830 (MEXU, TEX); Fuentes 101 (ARIZ, MEXU); Henrickson 15919-7 (TEX); Johnston 7130 (GH), 10333 (ASU, LL); Lehto 5267 (ASU); Moore 86 (MEXU, TEX), 88 (MEXU, TEX), 1475 (MEXU, TEX), 2010 (MEXU, TEX), 2552 (MEXU, TEX), 2580 (MEXU, TEX), 2851 (MEXU, TEX), 2856 (MEXU, TEX), 2869A (MEXU, TEX); Neff 92-3-27-3 (TEX); Salywon 73 (DES), 750 (ASU). [CCE].

  • Nerisyrenia sp. Moore 2869C (MEXU, TEX). This is a putative hybrid between N. incana and N. castillonii.

CACTACEAE

  • 1 Ancistrocactus brevihamatus (Engelm.) Britt. & Rose. [GV].

  • 5 Ancistrocactus pinkavanus García-Mor., Gonz.-Bot. & Rodr.-González [G]. Hinton 29472 (GBH); Van Devender s.n. (Greater Good). [CCE].

  • Ariocarpus fissuratus (Engelm.) K. Schum. [GV]. Hernández 2182 (MEXU); Pinkava 3987 (ASU), 5142 (LL), 5500 (ASU), 6139 (ASU); Sánchez Mejorada 4107 (MEXU). [CDE].

  • Astrophytum capricorne (A. Dietrich) Britton & Rose [GV]. Arias 2107 (MEXU). [CDE].

  • Coryphantha echinus (Engelm.) Britton & Rose [GV]. Pinkava 3989 (ASU), 5143 (ASU). [CDE].

  • 1 Coryphantha macromeris (Engelm.) Lem. [GV]. Hernández 2183 (MEXU). [CDE].

  • 1 Coryphantha poselgeriana (Dietrich) Britt. & Rose [GV]. Chiang 7655 (LL); Hernández 2180 (MEXU); Pinkava 4003 (ASU), 5043 (ASU). [CDE].

  • Coryphantha werdermannii Boed. [GV]. Pinkava 5529a (ASU). [CDE].

  • 2 Cylindropuntia anteojoensis (Pinkava) E.F. Anderson [GV]. [CDE].

  • Cylindropuntia imbricata (Haw.) F.M. Knuth [GV]. Pinkava 5958 (ASU).

  • 1 Cylindropuntia leptocaulis (DC.) F.M. Knuth [GV].

  • Echinocactus horizonthalonius Lem. [GV]. Chiang 7627 (LL); Hernández 2192 (MEXU); Pinkava 4004 (ASU).

  • 1 Echinocereus enneacanthus Engelm. [GV]. Pinkava 5061 (ASU), 5250 (ASU), P5501 (ASU), P5525 (ASU), 5552 (ASU). [CDE].

  • Echinocereus pectinatus (Scheidw.) Engelm. [GV]. Hernández 2185 (MEXU).

  • Echinocereus stramineus (Engelm.) Seitz [GV]. Hernández 2187 (MEXU). [CDE].

  • Epithelantha bokei Benson [GV]. Chiang 7632 (LL). [CDE].

  • Epithelantha micromeris (Engelm.) Weber [GV]. Gómez 2172B (MEXU); Hernández Macías 2191 (MEXU). [CDE].

  • Escobaria tuberculosa (Engelm.) Britton & Rose [GV]. Hernández 2188 (MEXU); Pinkava 6137 (ASU). [CDE].

  • Escobaria vivipara (Nuttall) Buxb. [GV]. Chiang 7626 (TEX); Pinkava 5080 (ASU).

  • Ferocactus hamatacanthus (Muehlenpf.) Britton & Rose [GV]. Hernández 2190 (MEXU); Pinkava 5503 (ASU). [CDE].

  • Grusonia bradtiana (J.M. Coult.) Britton & Rose [GV]. Arias 2108 (MEXU); Hernández 2186 (MEXU); Pinkava 3994 (ASU), 4081 (ASU). [CDE].

  • 1,2 Grusonia moelleri (A. Berger) E.F. Anderson [GV]. Pinkava 5002A (ASU), 5062 (ASU, MEXU), 5551 (ASU). [CDE].

  • Lophophora williamsii (Lem. ex Salm-Dyck) J.M. Coulter [GV]. Chiang 7643 (LL); Hernández Macías 2189 (MEXU); Pinkava 3759 (ASU). [CDE].

  • Mammillaria grusonii Rünge [GV]. Pinkava 5259 (ASU, RSA), 6138 (ASU). [CDE].

  • Mammillaria heyderi Muehlenpf. [GV]. Pinkava 10430A (ASU, DES), Pinkava PLO430A (DES).

  • Mammillaria pottsii Scheer ex Salm-Dyck [GV]. Hernández 2181 (MEXU); Pinkava 5505 (ASU). [CDE].

  • Neolloydia conoidea (DC.) Britton & Rose [GV]. Pinkava 5502 (ASU).

  • Opuntia atrispina Griffiths [GV]. Díaz 153 (MEXU). [CDE].

  • Opuntia macrocentra Engelm. [GV]. Díaz 118 (MEXU); Pinkava P3679 (ASU).

  • Opuntia phaeacantha Engelm. [GV]. Pinkava 5960 (ASU).

  • Sclerocactus mariposensis (Hester) N.P. Taylor [GV]. Gay 2962 (POM). [CDE].

  • Sclerocactus uncinatus (Galeotti) N.P. Taylor [GV]. Hernández 2184 (MEXU); Pinkava 5747 (ASU).

CARYOPHYLLACEAE

  • 1,2 Drymaria coahuilana (I.M. Johnst) B.L. Turner [G]. Chiang 7646 (MEXU); Flores 1822 (MEXU, TEX); Johnston 9154 (LL, MEXU); Moore 1469 (MEXU, TEX), 1954 (MEXU, TEX), 2015 (MEXU, TEX); Pinkava 5542 (ASU), P4344 (ASU). [CDE].

CELASTRACEAE

  • Mortonia scabrella A. Gray [GV]. Moore 2569 (MEXU, TEX).

CHENOPODIACEAE

  • Allenrolfea occidentalis (S. Watson) Kunze [GV]. Moore 2850 (MEXU, TEX).

  • 2 Atriplex acanthocarpa (Torr.) S. Watson subsp. stewartii (I.M. Johnst.) Henr. [GV] Chiang 7621 (TEX); Henrickson 1986 (ASU), 14274 (ASU), 14312 (ASU, TEX), 14301 (ASU, TEX), 20397 (MEXU, TEX, UCR). [CDE].

  • 1 Atriplex canescens (Pursh) Nutt. [GV]. Henrickson 12553-2 (TEX), 14304-12 (TEX); Pinkava 5263 (ASU).

  • 2 Atriplex prosopidium I.M. Johnst. [HGV]. Chiang 7612 (MEXU, TEX); Henrickson 14303 (TEX), 14307 (ASU); Pinkava 4343 (ASU), 5077 (ASU), 5251 (ASU). [CDE].

  • Atriplex texana S. Watson [GV]. Henrickson 14305 (ASU)

  • 2 Meiomeria stellata (S. Watson) Standl. [HG]. [CDE].

  • Sarcocornia utahensis (Tidestr.) A.J. Scott [HGV]. Henrickson 710 (TEX).

  • Suaeda mexicana (Standl.) Standl. [HGV]. Flores 1654 (MEXU, TEX); Henrickson 20407 (ASU, MEXU); Moore 2859 (MEXU, TEX).

  • Suaeda nigra (Raf.) J.F. Macbr. [HGV]. Flores 1827 (MEXU, TEX); Henrickson 7953 (MEXU, TEX); Johnston 7128 (GH).

  • 2 Suaeda palmeri (Standl.) Standl. [GV]. Brown s.n. (ASU); Chiang 7624 (TEX); Henrickson 7968 (TEX), 14299 (ASU); Johnston 10338 (MEXU, TEX); LaBounty 5957 (ASU); Rodríguez 1139 (MEXU). [CDE].

  • Suaeda sp. Flores 1630 (MEXU, TEX).

CONVOLVULACEAE

  • Ipomoea sagittata Poir. [GV]. Engard 318 (DES); Henrickson 7963 (TEX), 15371 (TEX).

CUCURBITACEAE

  • 1 Ibervillea tenuisecta (A. Gray) A. Gray [GV]. Meyer s.n. (ASU); Pinkava 5254 (ASU).

CYPERACEAE

  • Carex pringlei L.H. Bailey [HGV]. Cole 3737 (MICH); Daniel 683 (MICH); Henrickson 15367 (MEXU, TEX); Reeves P13034 (DES). [CDE].

  • Cladium jamaicense Crantz [GV]. Daniel 684 (MICH); Henrickson 7956 (ASU, LL, MEXU), 15369 (ARIZ); Johnston 7629 (LL, MEXU).

  • Eleocharis caribaea (Rottb.) S.F. Blake [GV]. Pinkava 3853 (ASU).

  • Eleocharis cellulosa Torr. [GV]. Henrickson 23180 (TEX).

  • Eleocharis montevidensis Kunth [GV]. Boke 146 (MICH); Henrickson 23179 (TEX).

  • Eleocharis rostellata (Torr.) Torr. [GV]. Harvey 1235 (MICH); Jones 7178 (MICH).

  • Fimbristylis thermalis S. Watson [GV]. Daniel 677 (MICH), 678 (MICH), 682 (MICH); Henrickson 7967 (LL, MEXU), 14294D (LL); Kral 25771 (MICH).

  • Fuirena simplex Vahl [GV]. Harvey 1236 (MICH); Henrickson 7962 (ASU, LL); Jones 7176 (MICH); Pinkava P3841 (ASU).

  • Rhynchospora colorata (L.) H. Pfeiff. [GV]. Pinkava 3854 (ASU).

  • Schoenus nigricans L. [GV]. Henrickson 7954 (ASU, LL), 15372 (TEX), 23190 (TEX), 23191 (TEX); Meyer s.n. (MICH).

  • Scirpus americanus Pers. [HGV]. Daniel 685 (MICH); Harvey 1238A (MICH); Henrickson 23192 (TEX); Thompson 589 (MICH).

  • Scirpus maritimus L. [GV]. Pinkava P3633 (ASU).

EBENACEAE

  • Diospyros texana Scheele [GV]. Pinkava P13082 (ASU).

EHRETIACEAE

  • 1 Tiquilia gossypina (Woot. & Standl.) Richardson [GV] Moore 2571 (MEXU, TEX). [CDE].

  • 1 Tiquilia greggii (Torrey & A. Gray) A.T. Richardson [GV]. Flores 1823 (MEXU, TEX); Moore 1995 (MEXU, TEX), 2547 (MEXU, TEX), 2576 (MEXU, TEX), 2861 (MEXU, TEX). [CDE].

  • Tiquilia mexicana (S. Watson) A.T. Richardson [GV]. Moore 2545 (MEXU, TEX). [CDE].

  • 1,2 Tiquilia turneri Richardson [G]. Flores 1819 (MEXU, TEX); Henrickson 12541 (LL, MEXU); Lehto P5262 (ASU); Moore 87 (MEXU, TEX), 89 (MEXU, TEX), 90 (MEXU, TEX), 1467 (MEXU, TEX), 2011 (MEXU, TEX); Reeves P13108A (ASU); Richardson 1595 (ARIZ, ASU, MEXU, MICH, RM, UC, US). [CDE].

ERICACEAE

  • Arbutus xalapensis Kunth [GV]. Engard 311 (DES).

EUPHORBIACEAE

  • Croton incanus Kunth [GV]. Pinkava 5182 (ASU); P13077 (ASU).

  • Euphorbia antisyphilitica Zucc. [GV]. Moore 2866 (MEXU, TEX); Pinkava 5200 (ASU).

  • 1 Euphorbia astyla Engelm. ex Boiss. [GV]. Chiang 7617C (LL), 7619 (LL, MEXU), 9157 (LL, MEXU); Engard 292 (DES); Pinkava 3627 (ASU), 5037 (ASU); Wendt 866 (TEX). [CDE].

  • 2 Euphorbia crepitata L.C. Wheeler. [G]. Moore 2557 (MEXU, TEX); Pinkava P5479 (ASU). [CDE].

  • Euphorbia exstipulata Engelm. [GV]. Pinkava P13050 (ASU).

  • 1,2 Euphorbia fruticulosa Engelm. ex Boiss. var. hirtella M.C. Johnst. [G]. Henrickson 12548 (LL, TEX); Pinkava P13104 (ASU); Wendt 864 (TEX). [CDE].

  • Euphorbia lata Engelm. [GV]. Moore 2558 (MEXU, TEX), 2867 (MEXU, TEX).

  • 2 Euphorbia scopulorum Brandegee [GV]. Chiang 7642 (LL, MEXU); Henrickson 7970 (ARIZ, MEXU, TEX); Pinkava 3753 (ASU), 5245 (ASU), 5477 (ASU), P5948 (ASU); Rodríguez 1143 (MEXU). [CDE].

  • Euphorbia serpyllifolia Pers. [GV]. Pinkava P5219B (ASU).

  • Euphorbia stictospora Engelm. [GV]. Pinkava P5222 (ASU).

  • Euphorbia sp. Moore 1477 (MEXU, TEX), 2017 (MEXU, TEX), 2855 (MEXU, TEX), 2868 (MEXU, TEX).

  • Tragia amblyodonta (Müll. Arg.) Pax & K. Hoffm. [GV]. Pinkava 5235 (ASU), 5186A (ASU), P13048 (ASU).

FABACEAE

  • Acacia berlandieri Benth. [GV]. Lehto 5181 (NY); Minckley 7237 (ASU).

  • Acacia farnesiana (L.) Willd. [GV]. Pinkava 5520 (ASU).

  • Acacia rigidula Benth. [GV]. Pinkava 5471 (ASU).

  • Acacia roemeriana Scheele [GV]. Pinkava 5468 (ASU).

  • Dalea wrightii A. Gray [GV]. Pinkava 5244 (DES).

  • Mimosa unipinnata B.D. Parfitt & Pinkava [GV]. Henrickson 24433 (TEX). [CDE].

  • Prosopis glandulosa Torr. [GV]. Henrickson 12551 (LL).

  • Senna monozyx (H.S. Irwin & Barneby) H.S. Irwin & Barneby [GV]. Chiang 7633 (TEX). [CDE].

  • Senna pilosior (B.L. Rob. ex J.F. Macbr.) H.S. Irwin & Barneby [GV]. Pinkava 5494 (ASU). [CDE].

FAGACEAE

  • Quercus pungens Liebm. [GV]. Pinkava P13060 (ASU), P13088 (ASU). [CDE].

FOUQUIERIACEAE

  • 2,6 Fouquieria shrevei I.M. Johnst. [G]. Moore 1997 (MEXU, TEX), 2555 (MEXU, TEX), 2864 (MEXU, TEX). [CDE].

  • 1 Fouquieria splendens Engelm. in Wisliz. [GV]. Flores 1826 (MEXU, TEX); Henrickson 14315-2 (TEX); Henrickson 18863 (MEXU); Lehto 5278 (ASU).

GENTIANACEAE

  • Eustoma exaltatum (L.) Salisb. ex G. Don [GV]. Chiang 7645 (LL), Flores 1831 (MEXU, TEX); Henrickson 15373 (TEX), 15373A (NMC), 15373B (MEXU) 19742 (MEXU, SRSC, UCR); Iltis 28Y (MEXU); Lehto 5031 (ASU), 5041 (ASU).

  • 1,2,9 Sabatia tuberculata J.E. Williams [GH]. Chiang 9163 (LL); Daniel 681 (ASU, MEXU); Henrickson 7965 (TEX), 12562 (LL, MEXU), 15366 (TEX), 19744 (MEXU, TEX); Pinkava 3852 (ASU). [CCE].

HYDROPHYLLACEAE

  • 1,2,10 Phacelia marshall-johnstonii Atwood & Pinkava var. marshall-johnstonii [G]. Chiang 7649 (LL); Flores 1835 (MEXU, TEX); Henrickson 15910 (TEX); Johnston 10334 (LL); Moore 2853 (MEXU, TEX). [CCE].

KRAMERIACEAE

  • Krameria erecta Willd. [GV]. Reeves P13053 (ASU).

  • Krameria grayi Rose & J.H. Painter [GV]. Pinkava P5526 (ASU).

LAMIACEAE

  • Hedeoma sp. Moore 2570 (MEXU, TEX).

  • Mentha rotundifolia Huds. [GV]. Pinkava 5515 (ASU); Reeves P13116 (ASU).

LOASACEAE

  • 1 Cevallia sinuata Lag. [GV]. Chiang 7654 (LL); Moore 2013 (MEXU, TEX).

  • Eucnide floribunda S. Watson [GV]. Henrickson 7971 (ARIZ, MEXU, NMC, TEX). [CDE].

  • Eucnide lobata (Hook.) A. Gray [GV]. Moore 2012 (MEXU, TEX).

  • 1 Mentzelia mexicana H.J. Thomps. & Zavort. [GV]. Chiang 7652 (LL, MEXU); Moore 1473 (MEXU, TEX); Pinkava 5274 (ASU). [CDE].

  • Mentzelia sp. Moore 1956 (MEXU, TEX).

  • 1,2 Petalonyx crenatus A. Gray ex S. Watson [G]. Chiang 7650 (LL, MEXU); Flores 1824 (MEXU, TEX); Minckley s.n. (ASU); Moore 2553 (MEXU, TEX), 2581 (MEXU, TEX); Pinkava 4345 (ASU), 5261 (ASU), 5541 (ASU, DES); Smith 4 (MEXU), 22158 (TEX). [CDE].

MALPIGHIACEAE

  • Cottsia gracilis (A. Gray) W.R. Anderson & C. Davis [GV]. Daniel 524 (ASU).

MALVACEAE

  • Abutilon malacum S. Watson [GV]. Pinkava 5953 (ASU).

  • Abutilon pinkavae Fryxell [GV]. Pinkava 5481 (ASU). [CDE].

  • Ayenia microphylla A. Gray [GV]. Pinkava 5201 (ASU).

  • Gossypium sp. Moore 2566 (MEXU, TEX).

  • 1 Sida longipes A. Gray [GV]. Chiang 7616 (MEXU), 7617 (LL).

NAMACEAE

  • Nama constancei J.D. Bacon [G]. Moore 2554 (MEXU, TEX). [CDE].

  • 2 Nama cuatrocienegensis G.L. Nesom. [GV]. [CCE].

  • 1,7 Nama serpylloides Hemsl. [G, HG]. Chiang 7647 (LL); Flores 1834 (MEXU, TEX); Johnston 7126 (GH); Lehto 5067 (ASU); Moore 1483 (MEXU, TEX), 2854 (MEXU, TEX). [CDE].

  • 1 Nama stenophylla A. Gray ex Hemsl. [G]. Chiang 7609 (LL, TEX), 9160 (LL); Flores 1828 (MEXU, TEX); Jackson 107 (TEX); Lehto 5045 (ASU), 5212 (ASU); Moore 1474 (MEXU, TEX), 2014 (MEXU, TEX), 2858 (MEXU, TEX); Wendt 655 (LL). [CDE].

  • Nama sp. Iltis 27 (MEXU).

NYCTAGINACEAE

  • Acleisanthes angustifolia (Torr.) R.A. Levin [GV]. Cole 3744 (ASU); Henrickson 20402 (MEXU, TEX).

  • Acleisanthes longiflora A. Gray [GV]. Chiang 7640 (LL).

  • 1,2,8 Acleisanthes purpusiana (Heimerl) R.A. Levin [G]. Flores 1821 (MEXU, TEX); Henrickson 12552 (MEXU, NMC), 18861 (ARIZ, MEXU); Lehto 5544 (ASU); Moore 1468 (MEXU, TEX), 2016 (MEXU, TEX), 2863 (MEXU, TEX); Reeves P13107 (ASU).

  • Acleisanthes undulata (B.A. Fowler & B.L. Turner) R.A. Levin [GV]. Daniel 533 (ASU); Henrickson 23195 (TEX).

  • Allionia choisyi Standl. [GV]. Cole 3773 (ASU); Henrickson 20405 (MEXU, NMC, TEX).

  • Allionia incarnata L. [GV]. Cole 3755 (ASU); Lehto 5215 (ASU); Pinkava 5059 (ASU).

  • Anulocaulis eriosolenus (A. Gray) Standl. [GV]. Moore 1957 (MEXU, TEX), 2019 (MEXU, TEX), 2556 (MEXU, TEX), 2865 (MEXU, TEX); Rodríguez 1158 (MEXU).

  • Boerhavia anisophylla Torr. [GV]. Moore 2002 (MEXU, TEX).

OLEACEAE

  • Menodora scabra A. Gray [GV]. Pinkava 5192 (ASU).

  • Menodora scoparia Engelm. ex A. Gray [GV]. Daniel 526 (ASU).

ONAGRACEAE

  • Ludwigia repens J.R. Forst. [HGV]. Lehto 5508 (ASU).

  • Oenothera boquillensis (P.H. Raven & D.P. Greg.) W.L. Wagner & Hoch [GV]. Moore 2546 (MEXU, TEX). This species seems to prefer gypsum.

  • 1 Oenothera macrosceles A. Gray [GV]. Cole P3850 (ASU); Lehto 5509 (ASU).

OROBANCHACEAE

  • Castilleja lanata A. Gray [GV]. Moore 2549 (MEXU, TEX).

  • Castilleja sp. Moore 2577 (MEXU, TEX).

  • 1 Orobanche ludoviciana Nutt. [GV]. Pinkava 5178 (ASU), 5271 (ASU).

OXALIDACEAE

  • Oxalis alpina (Rose) Rose ex R. Knuth [GV]. Pinkava P13098 (ASU).

PAPAVERACEAE

  • Argemone sanguinea Greene [GV]. Pinkava 5945 (ASU), P5208 (ASU).

  • Argemone sp. Moore 2568 (MEXU, TEX).

PASSIFLORACEAE

  • Passiflora tenuiloba Engelm. ex A. Gray [GV]. Daniel 531 (ASU).

PLANTAGINACEAE

  • Maurandya antirrhiniflora Humb. & Bonpl. ex Willd.subsp. hederifolia (Rothm.) Elisens [GV]. Rodríguez 141 (MEXU).

  • Penstemon barbatus (Cav.) Roth [GV]. Engard 315 (DES).

POACEAE

  • Aristida glauca (Nees) Walp. [GV]. Pinkava 5465 (ASU).

  • Aristida purpurea Nutt. [GV]. Rodríguez 1146 (USU).

  • Bouteloua curtipendula (Michx.) Torr. [GV]. Harvey 1208 (MICH); Pinkava 5464 (ASU).

  • Bouteloua eriopoda (Torr.) Torr. [GV]. Harvey 1207 (MICH).

  • Bouteloua ramosa Scribn. ex Vasey [GV]. Daniel 503 (MICH).

  • Bouteloua trifida Thurb. ex S. Watson [GV]. Boke 134 (MICH).

  • Bouteloua sp. Daniel 505 (MICH).

  • Cynodon dactylon (L.) Pers. [GV]. Pinkava 5078 (ASU).

  • Dasyochloa pulchella (Kunth) Willd. ex Rydb. [GV]. Rodríguez 1147 (USU).

  • Digitaria patens (Swallen) Henrard [GV]. Harvey 1211 (MICH).

  • Disakisperma dubia (Kunth) P.M. Peterson & N. Snow [GV]. Harvey 1226 (MICH).

  • Distichlis spicata (L.) Greene [HGV]. Chiang 7651 (LL), 9156 (LL); Harvey 1234 (MICH); Henrickson 7951 (ARIZ, ASU, NMC), 14310 (ASU); Johnston 10334A (LL).

  • Monanthochloë littoralis Engelm. [HGV]. Chiang 7625 (LL); Henrickson 7969 (LL), 14302 (LL).

  • Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi [GV]. Pinkava 5065 (ASU), 5512 (ASU).

  • Muhlenbergia lindheimeri Hitchc. [GV]. Wendt s.n. (ASU).

  • Panicum hallii Vasey [GV]. Rodríguez 1136 (MEXU).

  • Spartina spartinae (Trin.) Merr. ex Hitchc. [HGV]. Henrickson 7955 (ASU, LL); 15368 (TEX).

  • Sporobolus airoides (Torr.) Torr. [GV]. Chiang 9155 (LL, MEXU); Henrickson 7964 (LL), 14309 (LL), 14316 (ASU, LL); Pinkava 5079 (ASU), 5547 (ASU).

  • 2, 11 Sporobolus coahuilensis Valdés-Reyna. [GV]. [CCE].

  • Sporobolus flexuosus (Thurb. ex Vasey) Rydb. [GV]. Henrickson 12555 (LL).

  • 1,2 Sporobolus spiciformis Swallen [HG]. [CDE].

  • Sporobolus wrightii Munro ex Scribn. [HGV]. Henrickson 14287 (LL).

  • Tragus berteronianus Schult. [GV]. Pinkava P13047A (ASU).

  • Trichachne californica (Benth.) Chase [GV]. Pinkava 5955 (ASU).

POLEMONIACEAE

  • Giliastrum stewartii (I.M. Johnst.) J.M.Porter [GV]. Johnston 10335 (LL, MEXU); Lehto 5210 (ASU).

POLYGALACEAE

  • Hebecarpa barbeyana (Chodat) J.R. Abbott [GV]. Chiang 7617A (TEX); Reeves P13099 (ASU).

  • Polygala alba Nutt. [GV]. Chiang 7617B (TEX).

  • Polygala turgida Rose [GV]. Chiang 7639 (MEXU, TEX); Cole 3851 (ASU); Daniel 679 (ASU); Engard 288 (DES); Henrickson 7960 (ASU, TEX), 18860 (MEXU, TEX); Johnston 9162 (MEXU).

  • Rhinotropis lindheimeri (A. Gray) J.R. Abbott [GV]. La Bounty 5956 (ASU).

  • Rhinotropis nudata (Brandegee) J.R. Abbott [GV]. Moore 1993 (MEXU, TEX).

PORTULACACEAE

  • Portulaca oleracea L. [GV]. Henrickson 20403 (RSA).

  • Portulaca pilosa L. [GV]. Henrickson 20404 (MEXU).

PRIMULACEAE

  • 2 Samolus ebracteatus Kunth var. coahuilensis Henrickson [HGV]. Chiang 7638 (LL), 9165 (LL), 9160A (LL); Flores 1833 (MEXU, TEX); Henrickson 7930 (TEX), 18859 (ARIZ), 18859H (TEX), 18859M (MEXU); Iltis 28X (MEXU); Lehto 5040 (ASU), 5069 (ASU); Rodríguez 1132 (MEXU). [CDE].

RESEDACEAE

  • Oligomeris linifolia (Vahl) J.F. Macbr. [GV]. Lehto 5055 (ASU); Pinkava 10528 (ASU).

RHAMNACEAE

  • Condalia warnockii M.C. Johnst. [GV]. Rodríguez 1119 (MEXU).

  • Karwinskia humboldtiana (Schult.) Zucc. [GV]. Lehto 5470 (ASU), P5195 (ASU); Pinkava 5793B (DES); Reeves P13049 (ASU).

  • Ziziphus obtusifolia A. Gray [GV]. Leverich 8 (TEX)

ROSACEAE

  • Amelanchier denticulata (Kunth) K. Koch [GV]. Gentry 23248 (DES).

  • Purshia ericifolia (Torr. ex A. Gray) Henrickson [GV]. Reeves P13091 (ASU).

  • Vauquelinia corymbosa Bonpl. [GV]. Pinkava P6020 (DES).

RUBIACEAE

  • Bouvardia ternifolia (Cav.) Schltdl. [GV]. Reeves P13094 (ASU).

  • Hedyotis intricata Fosberg [GV]. Reeves P13071 (ASU).

  • Hedyotis teretifolia (Terrell) G.L. Nesom [G]. Moore 1999 (MEXU, TEX), 2550 (MEXU, TEX). [CDE].

  • Randia pringlei A. Gray [GV]. Chiang 7608 (LL, MEXU), 7637 (LL, MEXU); Henrickson 20398 (LL); Moore 2544 (MEXU, TEX); Pinkava 5472 (ASU). [CDE].

SALICACEAE

  • Salix nigra Marshall [GV]. Cole 3926 (LL).

SAURURACEAE

  • Anemopsis californica Nutt. ex Hook.& Arn. [GV]. Henrickson 15574B (MEXU).

SCROPHULARIACEAE

  • Buddleja scordioides Kunth [GV]. Moore 2560 (MEXU, TEX).

SOLANACEAE

  • Chamaesaracha villosa Rydb. [GV]. Chiang 7628 (LL); Henrickson 12565 (LL); Johnston 10336A (LL); Neff 92-3-27-2 (MEXU, TEX); Pinkava 5033 (ASU); Rodríguez 1156 (MEXU).

  • Lycium berlandieri Dunal [GV]. Henrickson 23182 (TEX).

  • 1,2 Lycium parishii A. Gray var. modestum (I.M. Johnston) Chiang [GV]. Chiang 7636 (LL); Henrickson 12545 (LL, MEXU); Pinkava 5266 (ASU); Wendt 661 (LL, MEXU). [CDE].

  • Solanum elaeagnifolium Cav. [GV]. Pinkava 5074 (ASU). [CDE].

ULMACEAE

  • Celtis pallida Torr. [GV]. Pinkava 5474 (ASU).

VERBENACEAE

  • Bouchea spathulata Torr. [GV]. Chiang 7610 (ASU, LL, MEXU). [CDE].

  • Lippia graveolens Kunth [GV]. Pinkava 5202 (ASU), P13051 (ASU).

  • Phyla nodiflora (L.) Greene [GV]. Pinkava 5514 (ASU).

VIOLACEAE

  • Hybanthus verticillatus (Ortega) Baill. [GV]. Pinkava 5236 (ASU), 5951 (ASU).

ZYGOPHYLLACEAE

  • Guaiacum angustifolium Engelm. [GV]. Pinkava P5173 (ASU).

  • Larrea tridentata (DC.) Coville [GV]. Pinkava 3743 (ASU), 5207 (ASU).

  • Peganum mexicanum A. Gray [GV]. Pinkava 5042 (ASU).

  • Sericodes greggii A. Gray [GV]. Daniel 523 (ASU). [CDE].

  • Tribulus terrestris L. [GV]. Pinkava 3770 (ASU).

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Ochoterena, H., Flores-Olvera, H., Gómez-Hinostrosa, C., Moore, M.J. (2020). Gypsum and Plant Species: A Marvel of Cuatro Ciénegas and the Chihuahuan Desert. In: Mandujano, M., Pisanty, I., Eguiarte, L. (eds) Plant Diversity and Ecology in the Chihuahuan Desert. Cuatro Ciénegas Basin: An Endangered Hyperdiverse Oasis. Springer, Cham. https://doi.org/10.1007/978-3-030-44963-6_9

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