Dioscorea batatas subsp. rakuda Makino Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Dioscoreales family Dioscoreaceae genus Dioscorea species Dioscorea polystachya Name Homonyms Dioscorea batatas f. rakuda Makino Dioscorea batatas subsp. rakuda Makino