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