Missouri Plants
Evening primrose   (Oenothera biennis)
Tracheophyte: Angiosperm: Dicot: Evening Primrose (Onagraceae)
Native North American Plant


Habitat: full sun sites with moist soil.
ID Features: large yellow flowers along long leafed stalks.
Natural History: Evening primrose is a common sight in meadows and wet-soil sites. Its flowers open in the late afternoon and then close by morning, being pollinated by moths and bees. Flower opening in some varieties takes less than one minute!
Evening primrose
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