Echinocereus melanacanthus Engelm. ex W.H.Earle, Cact. South. 4: 61. 1963 Echinocereus melanacanthus Engelm. ex W.H.Earle, Cact. South. 4: 61. 1963Taxon for this nameEchinocereus melanacanthus Engelm. ex W.H.Earle
