Erigeron thompsoniae S.F.Blake ex J.W.Thomps. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Erigeron species Erigeron peregrinus Name Homonyms Erigeron thompsoniae S.F.Blake Erigeron thompsoniae S.F.Blake ex J.W.Thomps.