Echinocactus hamatus J.Forbes Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Thelocactus species Thelocactus setispinus Name Homonyms Echinocactus hamatus J.Forbes Echinocactus hamatus Muehlenpf.