Aster biennis Torr. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Symphyotrichum species Symphyotrichum falcatum Name Homonyms Aster biennis (Lindl.) Ledeb. Aster biennis (Lindl. ex DC.) Ledeb. ex Franch. Aster biennis Torr. Aster biennis Nutt.