| Family | ONAGRACEAE |
| Genus species | Oenothera lavandulifolia Torr. & A.Gray sect. Calylophus |
| Bibliography | Fl. N. Amer. 1: 501 (1840) |
| Native Range | w. & c. USA to ne. Mexico |
| Primary Biome | Temperate |
| Habitat | steppes |
| Altitude | 600-2750m |
| Description | leaves crowded, linear to narrowly spathulate, more or less entire and finely grey lanate, flowers 2-4cm across, fading red |
| Size | 5-20cm |
| Color | yellow |
| Bloom | late spring, summer |
| Ca | + |
| Type | perennial |
| Cultivation | sunny site with a deep, drained soil alpine house, 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 | Calylophus hartwegii ssp. lavandulifolia (Torr. & A.Gray) Towner & P.H.Raven Calylophus hartwegii var. lavandulifolia (Torr. & A.Gray) Shinners Calylophus lavandulifolia (Torr. & A.Gray) P.H.Raven Galpinsia lavandulifolia (Torr. & A.Gray) Small Oenothera hartwegii var. lavandulifolia (Torr. & A.Gray) S.Watson Oenothera lavandulifolia var. typica Munz |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, WYO Wyoming) 74 North-Central U.S.A. (KAN Kansas, NEB Nebraska, OKL Oklahoma, SDA South Dakota) 76 Southwestern U.S.A. (ARI Arizona, NEV Nevada) 77 South-Central U.S.A. (NWM New Mexico, TEX Texas) 79 Mexico (MXE Mexico Northeast) |