Agropyron psammophilum f. aristatum J.M.Gillett & H.Senn Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Elymus species Elymus lanceolatus Name Homonyms Agropyron psammophilum f. aristatum J.M.Gillett & H.Senn