familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusAstragalus
sectionAstragalus sect. Desperati
speciesAstragalus desperatus
Astragalus desperatus var. desperatus
Endemic
Treatment appears in FNA Volume 11.
Plants shortly caulescent. Racemes 6–16(–18)-flowered. Legumes lunately curved, 11–19 mm.
Phenology: Flowering Apr–Jun.
Habitat: Mixed desert shrub and pinyon-juniper communities, on rimrock on sandy substrates.
Elevation: 1100–1900 m.
Distribution
Ariz., Colo., N.Mex., Utah.
Discussion
Variety desperatus occurs in Apache, Coconino, and Navajo counties in northeastern Arizona, Delta and Mesa counties in west-central Colorado, San Juan County in northwestern New Mexico, and Emery, Garfield, Grand, Kane, San Juan, and Washington counties in southeastern Utah.
Selected References
None.
Lower Taxa
None.