See other conspecific taxa:

• Astragalus bisulcatus var. bisulcatus (0 accessions)
• Astragalus bisulcatus var. haydenianus (0 accessions)
• Astragalus bisulcatus var. major (0 accessions)
• Astragalus bisulcatus var. nevadensis (0 accessions)

Autonyms (not in current use), synonyms and invalid designations:

(≡ homotypic synonym, = heterotypic synonym, - autonym, I invalid designation)

• Basionym: Phaca bisulcata Hook.

Common names:

• two-groove milk-vetch  (Source: F Utah) - English
• two-grooved milk-vetch  (Source: ICAW) - English (Canada)
• astragale à deux sillons  (Source: ICAW) - French (Canada)

Economic Importance:

• Vertebrate poisons: mammals (to livestock via selenium poisoning)

Distributional Range:

Native

Northern America

• WESTERN CANADA: Canada [Alberta, Manitoba (s.w.), Saskatchewan (s.)]
• NORTH-CENTRAL U.S.A.: United States [Kansas (w.), Nebraska (n.e. & n.w.), North Dakota, South Dakota, Oklahoma (Cimarron Co.)]
• NORTHWESTERN U.S.A.: United States [Colorado, Idaho (e.-c.), Montana, Wyoming]
• SOUTH-CENTRAL U.S.A.: United States [New Mexico (n.)]
• SOUTHWESTERN U.S.A.: United States [Arizona (n.), Nevada (e.-c.), Utah]

References:

1. Barneby, R. C. 1964. Atlas of North American Astragalus. Part I. The Phacoid and Homaloboid Astragali. Mem. New York Bot. Gard. 13:410.
2. Cronquist, A. et al. 1972-. Intermountain flora.
3. Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 148.
4. Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii)
5. Kingsbury, J. M. 1964. Poisonous plants of the United States and Canada.
6. Liberty Hyde Bailey Hortorium. 1976. Hortus third.
7. McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
8. Munro, D. B. Canadian poisonous plants information system (on-line resource).
9. Welsh, S. L. et al. 1987. A Utah flora. Great Basin Naturalist Mem. 9.
10. Welsh, S. L. et al. 1993. A Utah flora.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2024. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: http://gringlobal.iita.org/gringlobal/taxonomydetail.aspx?id=5726. Accessed 9 May 2024.