| Family | ONAGRACEAE |
| Genus species | Oenothera howardii (A.Nelson) M.E.Jones ex Prain sect. Megapterium |
| Bibliography | Index Kew., Suppl. 3: 121 (1908) |
| Native Range | wc. USA |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Altitude | 1000-3000m |
| Description | acaulescent, grey strigose, leaves oblanceolate or spathulate, pinnatifid to entire, 5-15cm, flowers few, axillary, sepals narrow, revolute, petals 4-5cm long |
| Size | 5-10cm |
| Color | yellow |
| Bloom | late spring, 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. 1-3 months, 18-21°C division in fall; cuttings in late summer |
| Synonyms | Lavauxia howardii A.Nelson |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, WYO Wyoming) 74 North-Central U.S.A. (KAN Kansas) 76 Southwestern U.S.A. (NEV Nevada, UTA Utah) |