| Family | ONAGRACEAE |
| Genus species | Oenothera tubicula A.Gray sect. Calylophus |
| Bibliography | Smithsonian Contr. Knowl. 3(5): 71 (1852) |
| Native Range | e. New Mexico to w. Texas and ne. Mexico |
| Primary Biome | Subtropical |
| Habitat | stony grassland |
| Altitude | 600-1800m |
| Description | leaves numerous, not crowded, linear to lanceolate, 1-2cm, acute, entire, glabrous, subsessile, flowers usually terminal, sepals lanceolate, petals 9-12mm long |
| Size | 5-50cm |
| Color | yellow |
| Bloom | late spring, summer |
| Ca | + |
| Type | subshrub |
| 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 basal cuttings in late summer |
| Synonyms | Calylophus tubicula (A.Gray) P.H.Raven Galpinsia carlabadiana A.Nelson Galpinsia glandulifera A.Nelson Galpinsia tubicula (A.Gray) Small Oenothera hartwegii var. tubicula (A.Gray) H.Lév. Oenothera serrulatoides H.Lév. Oenothera tubicula var. demissa A.Gray |
| Territory | 7 Northern America 77 South-Central U.S.A. (NWM New Mexico, TEX Texas) 79 Mexico (MXE Mexico Northeast) |