Oenothera heterophylla Nutt. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Myrtales family Onagraceae genus Oenothera species Oenothera heterophylla Name Homonyms Oenothera heterophylla Spach Oenothera heterophylla Steud. Oenothera heterophylla Nutt. ex Hook. & Arn., 1839 Oenothera heterophylla Nutt.