Erythraea vulgaris (Rafn) Willd. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Gentianaceae genus Centaurium species Centaurium littorale Name Homonyms Erythraea vulgaris Gray Erythraea vulgaris (Rafn) Willd.