Stipa pennata var. stenophylla Czern. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Stipa species Stipa tirsa Name Homonyms Stipa pennata var. stenophylla Czern. ex Lindem. Stipa pennata var. stenophylla Czern.