| Family | ONAGRACEAE |
| Genus species | Oenothera flava (A.Nelson) Garrett sect. Lavauxia |
| Bibliography | Spring Fl. Wasatch, ed. 4: 106 (1927) |
| Native Range | wc. Canada to Mexico |
| Primary Biome | Temperate |
| Habitat | grassland |
| Altitude | 300-3200m |
| Description | acaulescent, subglabrous, leaves oblanceolate, 5-20cm, basally pinnate, flower sessile amongst leaves, opening at evening, petals 1-2cm long, fading purple |
| Size | 5-10cm |
| Color | pale yellow |
| Bloom | spring, 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 after flowering; cuttings in late summer |
| Synonyms | Lavauxia flava A.Nelson Lavauxia hamata Wooton & Standl. Lavauxia palustris Rose Lavauxia taraxacoides Wooton & Standl. Oenothera flava ssp. taraxacoides (Wooton & Standl.) W.L.Wagner Oenothera hamata (Wooton & Standl.) Tidestr. Oenothera murdockii S.L.Welsh & N.D.Atwood Oenothera taraxacifolia var. ecristata (M.E.Jones) H.Lév & Guffroy Oenothera taraxacoides (Wooton & Standl.) Munz Oenothera triloba var. ecristata M.E.Jones |
| Territory | 7 Northern America 71 Western Canada (ABT Alberta, MAN Manitoba, SAS Saskatchewan) 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WAS Washington, WYO Wyoming) 74 North-Central U.S.A. (NDA North Dakota, NEB Nebraska, SDA South Dakota) 76 Southwestern U.S.A. (ARI Arizona, CAL California, NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico, TEX Texas) 79 Mexico (MXC Mexico Central, MXE Mexico Northeast, MXG Mexico Gulf, MXN Mexico Northwest, MXS Mexico Southwest) |