Panicum walteri Pursh Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Fl. Amer. Sept. 1: 66 (1813) Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Echinochloa species Echinochloa walteri Name Homonyms Panicum walteri Poir. Panicum walteri Pursh Panicum walteri Elliott Panicum walteri Muhl.