Erigeron trifidus Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Erigeron species Erigeron trifidus Name Homonyms Erigeron trifidus Larrañaga, 1923 Erigeron trifidus Schltdl., 1856 Erigeron trifidus Hook.