Gentiana quaterna subsp. longiflora HarrySm. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Gentianaceae genus Gentiana species Gentiana tetraphylla Name Homonyms Gentiana quaterna subsp. longiflora HarrySm. Gentiana ×quaterna subsp. longiflora Harry Sm. ex C.Marquand