Echinocactus polyocentrus Lem. ex Salm-Dyck, Cact. Hort. Dyck.: 22. 1841 Echinocactus polyocentrus Lem. ex Salm-Dyck, Cact. Hort. Dyck.: 22. 1841Taxon for this nameEchinocactus polyocentrus Lem. ex Salm-Dyck