Luetkea caespitosa (Nutt.) Britton Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Petrophytum species Petrophytum caespitosum Name Homonyms Luetkea caespitosa (Nutt.) Kuntze Luetkea caespitosa (Nutt.) Britton