Stipa robusta Nutt. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Hesperostipa species Hesperostipa spartea Name Homonyms Stipa robusta (Vasey) Scribn. Stipa robusta Nutt. ex Trin. & Rupr. Stipa robusta Nutt.