Wyoming Rare Plant Field Guide
Astragalus drabelliformis
- Similar Species: A. spatulatus has fruits that are two-edged in cross-section (flattened laterally) and flowers 6-9 mm long. Mature fruit are required to distinguish this reliably from A. drabelliformis. A. simplicifolius forms dense, bun-like mats and has larger flowers (10-16 mm long).
- Flowering/Fruiting Period: May-July/June-August.
- Distribution: Endemic to the Green River Basin, Wyoming (Sublette Co.).
- Habitat: Sagebrush and cushion plant communities on sandstone, stony clay, badlands, and barren clay slopes and ridges. Elev. 6900-7200 ft.
- References: Barneby 1964; Fertig 1993 c; Hartman and Nelson 1993 b; Kass 1993; Marriott 1988 a; Weynand and Amidon 1990.
