| Family | ONAGRACEAE |
| Genus species | Oenothera perennis L. sect. Kneiffia |
| Synonyms | Oenothera pumila L. |
| Oenothera pusilla Michx. | |
| Habitat | grassland and thickets |
| Description | basal leaves oblanceolate to spathulate, 2-5cm long, stem leaves narrowly lanceolate, flowers 15-20mm across, sepals often reddish |
| Size | 30-40cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | tuft |
| Cultivation | mesic, slightly humous, semi-shady site alpine house, moist, rich, drained soil, semi-shade |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 18-21°C division in fall; cuttings in late summer |
| Territory |
Northern America
Western Canada (British Columbia , Manitoba ) Eastern Canada (New Brunswick , Newfoundland , Nova Scotia , Ontario , Prince Edward I. , Québec ) Northwestern U.S.A. (Montana ) North-Central U.S.A. (Illinois , Iowa , Minnesota , Missouri , Nebraska , Wisconsin ) Northeastern U.S.A. (Connecticut , Indiana , Maine , Masachusettes , Michigan , New Hampshire , New Jersey , New York , Ohio , Pennsylvania , Rhode I. , Vermont , West Virginia ) Southeastern U.S.A. (Delaware , Georgia , Kentucky , Maryland , Mississippi , North Carolina , South Carolina , Tennessee , Virginia , District of Columbia) |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
| Comments | ONAGRACEAE
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