Galium wrightii var. rothrockii (A.Gray) Ehrend. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Galium species Galium wrightii Name Homonyms Galium wrightii var. rothrockii (A.Gray) Ehrend. ex Ferris Galium wrightii var. rothrockii (A.Gray) Ehrend.