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