Dioscorea batatas subsp. daikok 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. daikok Makino Dioscorea batatas subsp. daikok Makino