Dioscorea sprucei Uline Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Dioscoreales family Dioscoreaceae genus Dioscorea species Dioscorea sprucei Name Homonyms Dioscorea sprucei Uline ex R.Knuth Dioscorea sprucei Uline