Panicum poiforme Willd. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Megathyrsus species Megathyrsus maximus Name Homonyms Panicum poiforme Willd. ex Spreng. Panicum poiforme Bojer, 1837 Panicum poiforme Poir. Panicum poiforme Willd.