Erigeron poliospermus f. poliospermus Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Erigeron species Erigeron poliospermus Name Homonyms Erigeron poliospermus f. poliospermus Erigeron poliospermus var. poliospermus