Oenothera biennis f. biennis Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Myrtales family Onagraceae genus Oenothera species Oenothera biennis Name Homonyms Oenothera biennis var. biennis Oenothera biennis subsp. biennis Oenothera biennis f. biennis