oenothera

English Thesaurus

1. chiefly North American herbs with usually nocturnal flowers (noun.plant)

hypernym	:	dicot genus, magnoliopsid genus,
definition	:	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination (noun.plant)

member meronym	:	evening-primrose family, family onagraceae, onagraceae,
definition	:	a large and widely distributed family of plants of the order Myrtales (noun.plant)