Elymus geniculatus Curtis ex Sm. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Fl. Brit. 1: 153 (1800) Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Leymus species Leymus arenarius Name Homonyms Elymus geniculatus Curtis ex Sm. Elymus geniculatus Curtis Elymus geniculatus Delile