Galium rupestre DC. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Prodr. 4: 603 (1830) Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Galium species Galium firmum Name Homonyms Galium rupestre (Gardner) Walp. Galium rupestre Vis. Galium rupestre DC.