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Oenothera tetraptera
Also called White evening primrose, Four Wing Evening Primrose, Winged Evening Primrose
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.
Whitest evening primrose · California Evening Primrose · Evening Primrose · Common evening primrose · Tufted Evening Primrose · Woolly Beeblossom · Cleland's evening primrose · Crownleaf evening primrose · Velvetweed · Antioch Dunes evening primrose · Birdcage evening primrose · Oenothera dodgeniana
Text excerpted from the Wikipedia article Oenothera tetraptera by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
