Echinocactus labouretianus Cels ex K.Schum. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Thelocactus species Thelocactus hexaedrophorus Name Homonyms Echinocactus labouretianus Cels Echinocactus labouretianus Cels ex K.Schum.