Cereus royenii var. armatus Salm-Dyck ex Walp., Repert. Bot. Syst. 2: 276. 1843 Cereus royenii var. armatus Salm-Dyck ex Walp., Repert. Bot. Syst. 2: 276. 1843Taxon for this nameCereus royenii var. armatus Salm-Dyck ex Walp.
