Echinocactus bicolor var. pottsii Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 173. 1850 Echinocactus bicolor var. pottsii Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 173. 1850Taxon for this nameEchinocactus bicolor var. pottsii Salm-Dyck
