| Family | LOASACEAE |
| Genus species | Mentzelia acerosa M.E.Jones |
| Bibliography | Contr. W. Bot. 17: 30 (1930) |
| Native Range | sw. Idaho |
| Primary Biome | Temperate |
| Habitat | stony grassland |
| Description | stems slender, ramose, densely leafy, leaves pinnatipartite, segments 3-5, subulate-acuminate, with sharp spine, pubescent, flowers few, temrinal, petals lanceolate, acute |
| Size | 10-20cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C cuttings in late spring and in summer |
| Synonyms | Mentzelia torrey var. acerosa (M.E.Jones) Barneby |
| Territory | 7 Northern America 73 Northwestern U.S.A. (IDA Idaho) |