Oenothera claviformis var. citrina P.H.Raven Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Myrtales family Onagraceae genus Chylismia species Chylismia claviformis Name Homonyms Oenothera claviformis subsp. citrina P.H.Raven Oenothera claviformis var. citrina P.H.Raven