Echinocactus johnsonii Parry Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Sclerocactus species Sclerocactus johnsonii Name Homonyms Echinocactus johnsonii Parry ex Engelm. Echinocactus johnsonii Parry