| Family | FABACEAE |
| Genus species | Astragalus irolanus (M.E.Jones) Rydb. trib. Galegeae |
| Bibliography | N. Amer. Fl. [N.L.Britton & al., eds.] 24: 444 (1929) |
| Native Range | Mexico |
| Primary Biome | Seasonally Dry Tropical |
| Habitat | rocky slopes |
| Description | sericeous-hirsute, leaves 10-30cm, stipules deltate, 5-10mm, leaflets 25-35, lanceolate-eliptic, acute, 1-2cm, silvery, flowers in compact raceme, pod ovoid, puberulent |
| Size | 20-35cm |
| Color | purple |
| Bloom | spring |
| Ca | |
| Type | perennial |
| Cultivation | sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | scarified seed in spring, germ. 1-3 months, 10-13°C cuttings in late summer |
| Synonyms | Astragalus humboldtii A.Gray Astragalus mollissimus var. irolanus (M.E.Jones) Barneby Astragalus niquiriciifolius Sessé & Moc. Astragalus orizabae Seaton Astragalus orizabae var. irolanus M.E.Jones Phaca mollis Kunth Tragacantha mollis (Kunth) Kuntze |
| Territory | 7 Northern America 79 Mexico (MXC Mexico Central, MXE Mexico Northeast, MXG Mexico Gulf, MXS Mexico Southwest) |