Grindelia diffusa D.Don Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Grindelia species Grindelia brachystephana Name Homonyms Grindelia diffusa D.Don ex Arn. Grindelia diffusa D.Don Grindelia diffusa D.Don ex DC.