Calamagrostis arundinacea var. subbiflora Torges Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Calamagrostis species Calamagrostis varia Name Homonyms Calamagrostis arundinacea var. subbiflora Zapal. Calamagrostis arundinacea var. subbiflora Zapal.