familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusAstragalus
sectionAstragalus sect. Minerales
speciesAstragalus molybdenus
Astragalus molybdenus var. shultziorum
Great Basin Naturalist 58: 46. 1998.
Common names: Shultzes’ milkvetch
Endemic
Basionym: Astragalus shultziorum Barneby Brittonia 33: 156, fig. 1. 1981
Treatment appears in FNA Volume 11.
Leaflets 9–17 distally. Racemes (1 or)2(or 3)-flowered. Legumes 3-sided compressed, 8.5–11.5 mm, attenuate apically, beak elongate.
Phenology: Flowering Jul–Aug.
Habitat: Alpine tundra and krummholz, on talus.
Elevation: 2700–3500 m.
Discussion
D. Isely (1998) maintained this taxon at the specific level, although he pointed out that recent studies showed populations of Astragalus molybdenus of Colorado, Montana, and Wyoming (as treated here) to be closely related; populations of the former two states are more closely related than those of Wyoming.
Selected References
None.
Lower Taxa
None.