Echinocereus roemeri (Muehlenpf.) Engelm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Echinocereus species Echinocereus coccineus Name Homonyms Echinocereus roemeri (Muehlenpf.) Engelm. ex Haage Echinocereus roemeri (Muehlenpf.) Rydb. Echinocereus roemeri Rümpler Echinocereus roemeri (Muehlenpf.) Engelm.