Poa arctica subsp. cespitans Simmons Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Poa species Poa tolmatchewii Name Homonyms Poa arctica subsp. cespitans Simmons Poa arctica subsp. cespitans Simmons ex Nannf. Poa arctica var. cespitans (Simmons ex Nannf.) Hyl.