Cactus hexacanthus (Salm-Dyck) Kuntze Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Mammillaria species Mammillaria polythele Name Homonyms Cactus hexacanthus (Salm-Dyck) Kuntze