| Family | ONAGRACEAE |
| Genus species | Epilobium williamsii P.H.Raven |
| Bibliography | Bull. Brit. Mus. (Nat. Hist.), Bot. 2: 378 (1962) |
| Native Range | sc. China to Himalaya and n. Myanmar |
| Primary Biome | Subalpine |
| Habitat | alluvial gravel |
| Altitude | 2900-4900m |
| Description | leaves crowded, rather coriaceous, sessile, ovate to elliptic-ovate, 7-22mm, subglabrous, serrulate, acute, inflorescence and flowers pendent, petals 5-7mm |
| Size | 4-17cm |
| Color | pink-purple |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | gravelly, humous, moist, semi-shady site alpine house, moist, humous, gravelly soil, semi-shade |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 10-16°C division in early spring; cuttings in late summer |
| Territory | 3 Asia-Temperate 36 China (CHC China South-Central, CHQ Qinghai, CHT Tibet) 4 Asia-Tropical 40 Indian Subcontinent (EHM East Himalaya, NEP Nepal, WHM West Himalaya) 41 Indo-China (MYA Myanmar) |