| Family | FABACEAE |
| Genus species | Astragalus amphioxys A.Gray trib. Galegeae |
| Bibliography | Proc. Amer. Acad. Arts 13: 366 (1878) |
| Native Range | Nevada to Texas and e. Mexico |
| Primary Biome | Subtropical |
| Habitat | sandy grassland |
| Altitude | 300-1800m |
| Description | silvery pilose, leaves 2-11cm, leaflets 9-21 pairs, elliptic, raceme lax, 3-10-flowered, pod falciform, 2-4cm long, carnose, green |
| Size | 5-10cm |
| Color | purple |
| Bloom | early summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny site with a poor, sandy soil alpine house, sandy soil, sun |
| Propagation | scarified seed in spring, germ. 1-3 months, 10-13°C cuttings in late summer |
| Synonyms | Astragalus amphioxys var. cymbellus M.E.Jones Astragalus amphioxys var. melanocalyx (Rydb.) Tidestr. Astragalus amphioxys var. typicus Barneby Astragalus crescenticarpus E.Sheld. Astragalus marcusjonesii Munz Astragalus selenaeus Greene Astragalus shortianus var. minor A.Gray Xylophacos amphioxys (A.Gray) Rydb. Xylophacos aragalloides Rydb. Xylophacos melanocalyx Rydb. |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado) 76 Southwestern U.S.A. (ARI Arizona, NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico, TEX Texas) 79 Mexico (MXE Mexico Northeast) |