Agrostis castellana subsp. byzantina (Boiss.) Hack., 1901 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Agrostis species Agrostis castellana Name Homonyms Agrostis castellana subsp. byzantina (Boiss.) Hack. ex Kneuck. Agrostis castellana subsp. byzantina (Boiss.) Hack., 1901