Pennisetum rigidum var. longisetum (Griseb.) Stuck. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Cenchrus species Cenchrus rigidus Name Homonyms Pennisetum rigidum var. longisetum Griseb. Pennisetum rigidum var. longisetum (Griseb.) Stuck.