| Family | FABACEAE |
| Genus species | Astragalus rydbergii J.F.Macbr. trib. Galegeae |
| Bibliography | Contr. Gray Herb. 65: 37 (1922) |
| Native Range | wc. USA |
| Primary Biome | Temperate |
| Habitat | grassland and rocks |
| Description | glabrous, stipules ovate, leaves 8-10mm, leaflets 11-19, oblong or elliptic, 1-2cm, adaxially glabrous, rounded, raceme short, 5-10-flowered, corolla 1cm, pod strigose |
| Size | 20-30cm |
| Color | white |
| Bloom | spring, early summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | scarified seed in spring, germ. 1-3 months, 10-13°C cuttings in late summer |
| Synonyms | Astragalus carltonii J.F.Macbr. Astragalus decumbens var. decurrens (Rydb.) Cronquist Astragalus decumbens var. oblongifolius (Rydb.) Cronquist Astragalus hylophilus var. oblongifolius Rydb. Astragalus miser var. decurrens (Rydb.) Cronquist Astragalus miser var. oblongifolius (Rydb.) Cronquist Homalobus decurrens Rydb. Homalobus hitchcockii Rydb. Homalobus humilis Rydb. Homalobus microcarpus Rydb. Homalobus oblongifolius Rydb. |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, WYO Wyoming) 76 Southwestern U.S.A. (ARI Arizona, NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) |