Hilaria rigida (Thurb.) Benth. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Hilaria species Hilaria rigida Name Homonyms Hilaria rigida (Thurb.) Benth. ex Scribn. Hilaria rigida Vasey Hilaria rigida (Thurb.) Benth.