Luetkea caespitosa var. elatior (S.Watson) Britton Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Petrophytum species Petrophytum caespitosum Name Homonyms Luetkea caespitosa var. elatior (S.Watson) Britton Luetkea caespitosa subsp. elatior (S.Watson) Britton