Cereus magnus Haw. in Philos. Mag. Ann. Chem. 9: 109. 1830 Cereus magnus Haw. in Philos. Mag. Ann. Chem. 9: 109. 1830Taxon for this nameCereus magnus Haw. in Philos. Mag. Ann. Chem. 9: 109. 1830