Both flowers and fruits are needed to identify the varieties in this very diversified species of milkvetch. Photo by Krissy Walker.
This variety is a strong perennial, with prostrate stems radiating from a central point. Contrary to the varietal name sierra, this plant is unknown from the Sierra Nevada, but is narrowly endemic to the lake basins at the east end of the San Bernardino Mountains. Photo by Naomi Fraga.
Seedpods are inflated and papery when ripe. Photo by Thomas Stoughton.
Astragalus lentiginosus var. sierrae range map.