Also found in: Thesaurus.
Related to genus Oenothera: Oenothera fruticosa, Oenothera biennis, Oenothera macrocarpa, Oenothera lamarckiana
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|Noun||1.||genus Oenothera - chiefly North American herbs with usually nocturnal flowers|
dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination