Lithophragma nudicaulis Nutt. ex Torr. & A.Gray Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Saxifragales family Saxifragaceae genus Ozomelis species Ozomelis trifida Name Homonyms Lithophragma nudicaulis Nutt. ex Torr. & A.Gray Lithophragma nudicaulis Nutt.