Oenothera biennis var. grandiflora (L'Hér.) Torr. & A.Gray Dataset The Plant List with literature Rank VARIETY Published in Fl. N. Amer., 1: 492, 1840 Classification kingdom Plantae family Onagraceae genus Oenothera species Oenothera biennis Name Homonyms Oenothera biennis var. grandiflora (L'Hér.) Torr. & A.Gray Oenothera biennis f. grandiflora (L'Hér.) D.S.Carp.