Agropyron pauciflorum (Schweinitz) Hitchcock ex Silveus Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Elymus species Elymus violaceus Name Homonyms Agropyron pauciflorum Schur Agropyron pauciflorum (Schweinitz) Hitchcock ex Silveus Agropyron pauciflorum (Schwein.) Hitchc.