| Family | ONAGRACEAE |
| Genus species | Oenothera filifolia (Eastw.) Tidestr. sect. Calylophus |
| Bibliography | Fl. Ariz. New Mex. [I. Tidestrom & T.Kittell]: 279 (1941) |
| Native Range | se. New Mexico to w. & s. Texas and ne. Mexico |
| Primary Biome | Subtropical |
| Habitat | sandy grassland |
| Altitude | 600-1900m |
| Description | glandular-pubescent, leaves 5-40mm, filiform to narrowly lanceolate, on base attenuate, entire or remotely serrate, sometimes sinuate, flowers solitary, petals 12-32mm |
| Size | 5-45cm |
| Color | yellow |
| Bloom | spring, summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny site with a poor, sandy soil alpine house, sandy soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 18-21°C cuttings in late summer |
| Synonyms | Calylophus hartwegii ssp. filifolia (Eastw.) Towner & Raven Calylophus hartwegii var. filifolia (Eastw.) Munz Galpinsia filifolia (Eastw.) A.Heller Oenothera hartwegii var. filifolia (Eastw.) Munz Oenothera hartwegii ssp. filifolia (Eastw.) W.L.Wagner & Hoch Oenothera tubicola var. filifolia Eastw. |
| Territory | 7 Northern America 77 South-Central U.S.A. (NWM New Mexico, TEX Texas) 79 Mexico (MXE Mexico Northeast) |