Oenothera biennis f. grandiflora (L'Hér.) D.S.Carp. Dataset The Plant List with literature Rank FORM 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.