Echinocactus ourselianus Cels Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Gymnocalycium species Gymnocalycium monvillei Name Homonyms Echinocactus ourselianus Cels ex Salm-Dyck Echinocactus ourselianus Cels Echinocactus ourselianus Monv.