Stipa capillifolia Hack. ex Stuck. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Piptochaetium species Piptochaetium napostaense Name Homonyms Stipa capillifolia Hack. Stipa capillifolia Hack. ex Stuck.