| Family | ONAGRACEAE |
| Genus species | Epilobium hallianum Hausskn. |
| Bibliography | Monogr. Epilobium: 261 (1884) |
| Native Range | w. Canada to n. Mexico |
| Primary Biome | Temperate |
| Habitat | alluvial gravel |
| Altitude | 100-3700m |
| Description | leaves subsessile, the basal ovate, the upper lanceolate, 1-5cm, denticulate, obtuse, glabrous, flowers in raceme, erect, sepals green, subglabrous, petals 2-6mm, emarginate |
| Size | 5-40cm |
| Color | white |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | gravelly, humous, moist, sunny site alpine house, moist, humous, gravelly soil, sun |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 10-16°C division in early spring; cuttings in late summer |
| Synonyms | Epilobium brevistylum var. pringleanum (Hausskn.) Jeps. Epilobium brevistylum var. subfalcatum (Trel.) Munz Epilobium brevistylum var. tenue (Trel.) Jeps. Epilobium brevistylum var. ursinum (C.S.P.Parish ex Trel.) Jeps. Epilobium delicatum var. tenue Trel. Epilobium glandulosum var. tenue (Trel.) C.L.Hitchc. Epilobium pringleanum Hausskn. Epilobium pringleanum var. tenue (Trel.) Munz Epilobium ursinum C.S.P.Parish ex Trel. Epilobium ursinum var. subfalcatum Trel. |
| Territory | 7 Northern America 71 Western Canada (ABT Alberta, BRC British Columbia, SAS Saskatchewan) 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WAS Washington, WYO Wyoming) 74 North-Central U.S.A. (SDA South Dakota) 76 Southwestern U.S.A. (ARI Arizona, CAL California, NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) 79 Mexico (MXE Mexico Northeast, MXN Mexico Northwest) |