Echinocereus ehrenbergii (Pfeiff.) Engelm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Echinocereus species Echinocereus cinerascens Name Homonyms Echinocereus ehrenbergii (Pfeiff.) Engelm. ex Haage Echinocereus ehrenbergii (Pfeiff.) Rümpler Echinocereus ehrenbergii (Pfeiff.) Bravo Echinocereus ehrenbergii (Pfeiff.) Engelm.