Rubia cordifolia var. membranacea Franch. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Rubia species Rubia membranacea Name Homonyms Rubia cordifolia var. membranacea Franch. ex Diels Rubia cordifolia var. membranacea Franch.