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This species is accepted, and its native range is Arizona to New Mexico and N. Mexico.
A specimen from Kew's Herbarium

[FZ]

Leguminosae, B. Verdcourt. Flora Zambesiaca 3:6. 2000

Morphology General Habit
Thinly woody shrub to 90 cm tall; young stems pubescent with short hooked hairs, becoming glabrous.
Morphology Leaves
Leaves 3-foliolate; leaflets 0.7–5.5 × 0.4–3.5 cm (up to 3 × 1.5 cm in African material seen), elliptic to ovate, rounded to subacute and mucronulate at the apex, rounded at the base, finely puberulous and with some longer hairs on the venation, distinctly ciliate around the margin; petiole 0.6–3 cm long with rhachis almost equal in length; stipules 5–12 mm long, obliquely ovate-attenuate.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary and terminal 10–23 cm long; bracts and bracteoles conspicuous in young stage but soon deciduous.
Morphology Reproductive morphology Flowers Calyx
Calyx tube 1 mm long; lobes 2 mm long, narrowly triangular.
Morphology Reproductive morphology Flowers Corolla
Corolla c. 5 mm long.
Morphology Reproductive morphology Fruits
Fruits with 1–5 articles joined centrally, each article 7–8.5 × 5–6 mm when mature, elliptic, strongly reticulate, puberulous.
Morphology Reproductive morphology Seeds
Seeds pale brown, 3.5 × 2.5 × 0.8 mm, ellipsoid, very compressed; hilum minute, not quite central.

[ILDIS]

International Legume Database and Information Service

Morphology General Habit
Annual/Perennial, Not climbing, Herb/Shrub

Native to:

Arizona, Mexico Northeast, Mexico Northwest, New Mexico

Introduced into:

Zambia, Zimbabwe

Desmodium psilocarpum A.Gray appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Wright, C. [1016], New Mexico K000081862 Unknown type material
Wright, C. [1016], New Mexico K000297425 Unknown type material
Hort. Cantab. [s.n.], Mexico K001276542

First published in Smithsonian Contr. Knowl. 5(6): 48 (1853)

Accepted by

  • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
  • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.
  • Isely, D. (1998). Native and Naturalized Leguminosae (Fabaceae) of the United States: 1-1007. Monte L. Bean Life Science Museum. Brigham Young University, Provo, Utah.
  • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
  • Verdcourt, B. (2000). Flora Zambesiaca 3(6): 1-175. Royal Botanic Gardens, Kew.
  • Villaseñor, J.L. (2016). Checklist of the native vascular plants of Mexico Revista Mexicana de Biodiversidad 87: 559-902.

Literature

Kew Backbone Distributions

  • Isely, D. (1998). Native and Naturalized Leguminosae (Fabaceae) of the United States: 1-1007. Monte L. Bean Life Science Museum. Brigham Young University, Provo, Utah.
  • Verdcourt, B. (2000). Flora Zambesiaca 3(6): 1-175. Royal Botanic Gardens, Kew.
  • Villaseñor, J.L. (2016). Checklist of the native vascular plants of Mexico Revista Mexicana de Biodiversidad 87: 559-902.

International Legume Database and Information Service

  • Isely, D. (1998). Native & naturalized Leg. of the USA. Brigham Young Univ. Utah

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

International Legume Database and Information Service
International Legume Database and Information Service (ILDIS) V10.39 Nov 2011
http://creativecommons.org/licenses/by/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0