| Family | APIACEAE |
| Genus species | Lomatium planosum (Osterh.) Mansfield & S.R.Downie |
| Bibliography | Phytotaxa 316: 97 (2017) |
| Native Range | nw. Colorado |
| Primary Biome | Temperate |
| Habitat | stony grassland |
| Description | leaves glaucous, in outline ovate, 7-8cm long, tripinnatifid, ultimate segments oblong to obovate, bracts subulate, achenes oblong, 6mm, broadly alate |
| Size | 5-7cm |
| Color | purple |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | seed when ripe or as soon as possible |
| Synonyms | Aulospermum planosum Osterh., Bull. Torrey Bot. Club 30: 236 (1903) Cymopterus planosus (Osterh.) Mathias |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado) |