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