Agropyron riparium Schltdl. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Elymus species Elymus lanceolatus Name Homonyms Agropyron riparium Scribn. & J.G.Sm. Agropyron riparium Schltdl.