Sclerocactus sheeri (Salm-Dyck) N.P.Taylor Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Sclerocactus species Sclerocactus scheerii Name Homonyms Sclerocactus sheeri (Salm-Dyck) N.P.Taylor