Panicum mertensii Roth ex Roem. & Schult. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Panicum species Panicum mertensii Name Homonyms Panicum mertensii Roth Panicum mertensii Roth ex Roem. & Schult.