Bromus hordeaceus subsp. subracemosus (H.C.Watson) Asch. & Graebn. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Bromus species Bromus hordeaceus Name Homonyms Bromus hordeaceus subsp. subracemosus (H.C.Watson) Asch. & Graebn.