Dioscorea aspera Humb. & Bonpl. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Dioscoreales family Dioscoreaceae genus Dioscorea species Dioscorea aspera Name Homonyms Dioscorea aspera Humb. & Bonpl. ex Willd. Dioscorea aspera Humb. & Bonpl.