Cynanchum maccartii var. latifolium Turner Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Apocynaceae genus Metastelma species Metastelma turneri Name Homonyms Cynanchum maccartii var. latifolium Turner ex Henrickson Cynanchum maccartii var. latifolium Turner