| Oenothera tetraptera | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Onagraceae |
| Genus: | Oenothera |
| Species: | O. tetraptera |
| Binomial name | |
| Oenothera tetraptera Cav. | |
Oenothera tetraptera, known as fourwing evening primrose, is a species of flowering plant in the evening primrose family (Onagraceae) native to the Americas. It has widely naturalized in other areas, including southern Africa, Europe, Asia, and Oceania.
Oenothera tetraptera was first formally named by Spanish botanist Antonio José Cavanilles in 1796. It is an annual or short-lived perennial herb growing 15–50 cm (0.5–1.6 ft) tall. The four-petaled, white flowers open around sunset. Each petal grows up to 3.8 cm (1.5 in) in length and the flowers change from white to pinkish purple as they age. The fruit is a hairy, obovoid capsule, 7–18 mm in length with wings 2–3 mm wide on the valves, for which the species was named.
References
- NRCS. "Oenothera tetraptera". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 5 November 2019.
- ^ "Oenothera tetraptera Cav". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 5 November 2019.
- ^ Chen, Jiarui; Peter C. Hoch; Warren L. Wagner. "Oenothera tetraptera". Flora of China. Vol. 13. Retrieved 5 November 2019 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- "Oenothera tetraptera Cav". ipni.org. International Plant Names Index. Retrieved 5 November 2019.