Onagra cockerellii (Bartlett ex DeVries) DeVries Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Myrtales family Onagraceae genus Oenothera species Oenothera villosa Name Homonyms Onagra cockerellii (Bartlett ex de Vries) de Vries Onagra cockerellii (Bartlett ex DeVries) DeVries