Onagra biennis var. grandiflora (L'Hér.) Lindl. Dataset The Plant List with literature Rank VARIETY Published in Edwards's Bot. Reg., 19: t. 1604, 1833 Classification kingdom Plantae family Onagraceae genus Oenothera species Oenothera biennis Name Homonyms Onagra biennis var. grandiflora (L'Hér.) Lindl.