| Family | FABACEAE |
| Genus species | Astragalus zerdanus Boiss. sect. Brachylobium |
| Bibliography | Diagn. Pl. Orient. 2: 51 (1843) |
| Native Range | w. Iran |
| Primary Biome | Temperate |
| Habitat | rocks |
| Altitude | 2200-4000m |
| Description | cinereous-grey adpressed pubescent, leaflets 5-6 pairs, ovate or oblong, obtuse, flowers 6-10 in ovoid head, calyx black hirsute, lobes linear |
| Size | 5-10cm |
| Color | bluish violet |
| Bloom | summer |
| Ca | |
| Type | perennial |
| 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 | Phaca zerdana (Boiss.) Boiss. Tragacantha zerdana (Boiss.) Kuntze |
| Territory | 3 Asia-Temperate 34 Western Asia (IRN Iran) |