Bromus hordeaceus subsp. robustus Zapal. 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 var. robustus Zapal. Bromus hordeaceus subsp. robustus Zapal.