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