| Family | POLYGONACEAE |
| Genus species | Polygonum macrohymenium Boiss. |
| Bibliography | Fl. Orient. 4: 1041 (1879) |
| Native Range | Iran |
| Primary Biome | Subtropical |
| Habitat | rocky slopes |
| Description | glaucous, leaves linear-lanceolate, obtuse, mucronate, margins revolute, flowers axillary, solitary, in dense spike |
| Size | 3-10cm |
| Color | greenish white |
| Bloom | summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, germ. 1-3 months, 13-18°C cuttings in late spring and late summer |
| Territory | 3 Asia-Temperate 34 Western Asia (IRN Iran) |