| Family | ASTERACEAE |
| Genus species | Arnica tomentosa J.M.Macoun trib. Heliantheae |
| Bibliography | Otawa Naturalist 13: 166 (1899) |
| Native Range | Subarctic America to Montana |
| Primary Biome | Temperate |
| Habitat | grassland |
| Altitude | 500-2500m |
| Description | leaves petiolate, narrowly lanceolate, densely white lanate, subentire, acute, capitula 1-5, erect, involucre subspherical, densely lanate and glandular |
| Size | 5-25cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1 month, 10-16°C division in spring; cuttings in late summer |
| Synonyms | Arnica alpina ssp. tomentosa (J.M.Macoun) Maguire Arnica alpina var. tometosa (J.M.Macoun) Cronquist Arnica angustifolia ssp. tomentosa (J.M.Macoun) G.W.Douglas & Ruyle-Douglas Arnica angustifolia var. tomentosa (J.M.Macoun) Dorn |
| Territory | 7 Northern America 70 Subarctic America (NWT Northwest Territories, YUK Yukon) 71 Western Canada (ABT Alberta, BRC British Columbia) 72 Eastern Canada (NFL Newfoundland) 73 Northwestern U.S.A. (MNT Montana) |