| Family | ASTERACEAE |
| Genus species | Arnica gracilis Rydb. trib. Heliantheae |
| Bibliography | Bull. Torrey Bot. Club 24: 297 (1897) |
| Native Range | w. Canada to nw. USA and Utah |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Altitude | 1200-2500m |
| Description | basal leaves ovate to broadly lanceolate, more or less dentate, stem leaves 2-3 pairs, ovate to ovate-lanceolate, capitula 3-7, small, ligules 8-11, 15mm long |
| Size | 10-30cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1 month, 10-16°C division in spring; cuttings in late summer |
| Synonyms | Arnica arcana A.Nelson Arnica betonicifolia var. gracilis (Rydb.) M.E.Jones Arnica columbiana A.Nelson Arnica jonesii Rydb. Arnica lactucina Greene Arnica latifolia var. gracilis (Rydb.) Cronquist Arnica multiflora Greene |
| Territory | 7 Northern America 71 Western Canada (ABT Alberta, BRC British Columbia) 73 Northwestern U.S.A. (IDA Idaho, MNT Montana, ORE Oregon, WAS Washington, WYO Wyoming) 76 Southwestern U.S.A. (UTA Utah) |