Poa pratensis var. arida Parn. Dataset GBIF Backbone Taxonomy Rank VARIETY Published in Grass. Scotland: 74 (1842) Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Poa species Poa pratensis Name Homonyms Poa pratensis var. arida Parn. Poa pratensis subsp. arida Parn.