Echinocactus leucanthus Gillies Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Acanthocalycium species Acanthocalycium leucanthum Name Homonyms Echinocactus leucanthus Gillies ex Salm-Dyck Echinocactus leucanthus Gillies Echinocactus leucanthus Zucc. Echinocactus leucanthus Zucc. ex Pfeiff.