Cactus prolifer Willd. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Mammillaria species Mammillaria mammillaris Name Homonyms Cactus prolifer Willd. ex Pfeiff. Cactus prolifer Mill. Cactus prolifer Willd.