Opuntia sulphurea var. laevior Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 67. 1850 Opuntia sulphurea var. laevior Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 67. 1850Taxon for this nameOpuntia sulphurea var. laevior Salm-Dyck