| Family | ROSACEAE |
| Genus species | Potentilla tweedyi (Rydb.) J..T.Howell |
| Bibliography | Leafl. W. Bot. 4: 176 (1945) |
| Native Range | nw. USA |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Altitude | 1600-2300m |
| Description | taproot, basal leaves numerous, 3-8cm long, leaflets 19-35, to 1cm, pinnatipartite, segments filiform to linear, flowers in compact cyme, petals 3-4mm long |
| Size | 5-20cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 18-21°C cuttings in late summer and fall |
| Synonyms | Horkelia tweedyi (Rydb.) A.Nelson & J.F.Macbr. Ivesia tweedyi Rydb. |
| Territory | 7 Northern America 73 Northwestern U.S.A. (IDA Idaho, MNT Montana, WAS Washington) |