Echinocactus subuliferus hort. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Echinocactus species Echinocactus subuliferus Name Homonyms Echinocactus subuliferus Link & Otto Echinocactus subuliferus hort. ex Pfeiff., 1837 Echinocactus subuliferus hort.