| Family | FABACEAE |
| Genus species | Astragalus tridactylicus A.Gray trib. Galegeae |
| Bibliography | Proc. Amer. Acad. Arts 6: 527 (1865) |
| Native Range | Colorado to Wyoming |
| Primary Biome | Temperate |
| Habitat | stony grassland |
| Description | stems densely leafy, leaflets oblanceolate, 5-20mm, densely sericeous, calyx sericeous, lobes subulate, flowers few in head, ca. 1cm long, pod spherically ovoid, 6-8mm long |
| Size | 3-5cm |
| Color | purple, yellowish |
| Bloom | spring, early summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | scarified seed in spring, germ. 1-3 months, 10-13°C cuttings in late summer |
| Synonyms | Astragalus sericoleucus var. tridactylicus (A.Gray) M.E.Jones Astragalus tridactylicus f. coloradensis Gand, Astragalus tridactylicus f. pallidiflora Gand. Orophaca tridactylica (A.Gray) Rydb. Phaca digitata Torr. Tragacantha tridactylica (A.Gray) Kuntze |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, WYO Wyoming) |