| Family | RANUNCULACEAE |
| Genus species | Trollius albiflorus (A.Gray) Rydb. |
| Bibliography | Mem. New York Bot. Gard. 1: 152 (1900) |
| Native Range | w. Canada to wc. USA |
| Primary Biome | Temperate |
| Habitat | grassland |
| Altitude | 1200-3800m |
| Description | basal leaves long petiolate, palmatipinnate, stem leaves 1-3, broadly amplexicaule, membranously vaginate, flowers 2-5cm across, sepals 5-9, spreading, ovate |
| Size | 10-55cm |
| Color | white |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in winter, germ. 3-12 months, 10-16°C division in late summer |
| Synonyms | Trollius americanus var. albilforus (A.Gray) Ingw. Trollius laxus var. albiflorus A.Gray Trollius laxus ssp. albiflorus (A.Gray) Á.Löve & al. |
| Territory | 7 Northern America 71 Western Canada (ABT Alberta, BRC British Columbia) 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, WAS Washington, WYO Wyoming) 76 Southwestern U.S.A. (UTA Utah) |