Tylophora shikokiana Matsum. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Apocynaceae genus Vincetoxicum species Vincetoxicum nikoense Name Homonyms Tylophora shikokiana Matsum. ex Nakai Tylophora shikokiana Matsum.