Erythraea longiflora Nutt. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Gentianaceae genus Zeltnera species Zeltnera exaltata Name Homonyms Erythraea longiflora Nutt. ex S.Watson Erythraea longiflora Nutt.