Plantae > Tracheophyta > Magnoliopsida > Myrtales > Onagraceae > Oenothera > Oenothera engelmannii Oenothera engelmannii (Engelmann's evening-primrose; Engelmann's eveningprimrose)Synonyms: Anogra engelmanni (homotypic); Anogra pallida var. engelmannii (homotypic)
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