| Family | ONAGRACEAE |
| Genus species | Oenothera xylocarpa Coville |
| Bibliography | Contr. U.S. Natl. Herb. 4: 105 (1893) |
| Native Range | California to Nevada |
| Primary Biome | Temperate |
| Habitat | grassland |
| Altitude | 2100-3100m |
| Description | acaulescent, leaves pinnatipartite, often red variegate, in outline broadly oblanceolate, densely finely pubescent, corolla tube thin, villose, 25-45mm long, petals incised |
| Size | 5-10cm |
| Color | bright yellow, reddish |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 18-21°C division in fall; cuttings in late summer |
| Synonyms | Anogra xylocarpa (Coville) Small |
| Territory | 7 Northern America 76 Southwestern U.S.A. (CAL California, NEV Nevada) |