Elymus crescendus (Ramaley) W.A.Wheeler Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Elymus species Elymus canadensis Name Homonyms Elymus crescendus (Ramaley) C.F.Wheeler Elymus crescendus (Ramaley) W.A.Wheeler