| Family | FABACEAE |
| Genus species | Astragalus melanocalyx Boiss. & Buhse sect. Dissitiflori |
| Bibliography | Nouv. Mém. Soc. Imp. Naturalistes Moscou 12: 59 (1860) |
| Native Range | c. Iran |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Description | appresed hirsute, stipules minute, triangular, leaflets 2-3-pairs, minute, ovate, flowers 6-15 in lax, short raceme, calyx black setose, lobes triangular, short |
| Size | 15-20cm |
| Color | purple |
| Bloom | late spring, summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny 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 | Tragacantha melanocalyx (Boiss. & Buhse) Kuntze |
| Territory | 3 Asia-Temperate 34 Western Asia (IRN Iran) |