Wyoming Rare Plant Field Guide
Astragalus paysonii
- Similar Species: A. alpinus has black-haired fruit and fused stipules. A. canadensis has cream or pale yellow flowers, a congested inflorescence, and erect fruit. Hedysarum spp. have united stipules, veiny leaflets and purple flowers.
- Flowering/Fruiting Period: June-August/July-October.
- Distribution: NC Idaho and the Wyoming/Salt River ranges of western Wyoming (Lincoln and Sublette Cos.).
- Habitat: Disturbed areas and recovering burns, clear cuts, and road cuts on sandy soils with low cover of herbs and grasses. Elev. 6700-9600 ft.
- References: Barneby 1964; Dorn 1980, 1992 b; Fertig and Marriott 1993; Lorain 1990; USDA Forest Service 1989, 1991.
