Therofon richardsonii (Hook.) Wheelock Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Saxifragales family Saxifragaceae genus Boykinia species Boykinia richardsonii Name Homonyms Therofon richardsonii (Hook.) Kuntze Therofon richardsonii (Hook.) Wheelock