| Family | APIACEAE |
| Genus species | Lomatium hallii (S.Watson) J.M.Coult. & Rose |
| Bibliography | Contr. U.S. Natl. Herb. 7: 224 (1900] |
| Native Range | w. Oregon to Washington |
| Primary Biome | Temperate |
| Habitat | rocks |
| Description | taproot, glabrous, leaves in outline oblong, pinnate, segments ovate, ca. 1cm, deeply dentate or pinnatifid, rays of umbel 3-6, 2-3cm, equal, achenes elliptic, glabrous |
| Size | 15-45cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed when ripe or as soon as possible |
| Synonyms | Cogswellia hallii (S.Watson) M.E.Jones Lomatium nelsonianum J.F.Macbr. Peucedanum hallii S.Watson Peucedanum nudicaule A.Gray |
| Territory | 7 Northern America 73 Northwestern U.S.A. (ORE Oregon, WAS Washington) |