Astragalus tridactylicus or Orophaca tridactylica
(Foothills Milkvetch)

Fabaceae (Pea)
Astragalus tridactylicus is mat forming and is one of the first legumes to bloom in the spring. Leaves are trifoliate and pubescent. It is usually found on shale outcrops along the foothills.

Compare to Astragalus sericoleucus, which grows on sandstone outcrops of the eastern plains. Flowers of A. sericoleucus are slightly smaller and deeper purple.

Vegetation zone:  Foothills
Time of bloom:  April - June
Origin:  Native
Eastern Colorado Wildflowers