Cereus articulatus Pfeiff., Enum. Diagn. Cact.: 103. 1837 Cereus articulatus Pfeiff., Enum. Diagn. Cact.: 103. 1837is basionym for Tephrocactus articulatus (Pfeiff.) Backeb. in Cactus (Paris) 38: 249. 1953is basionym for Opuntia articulata (Pfeiff.) D.R.Hunt in Bradleya 5: 93. 1987Taxon for this nameCereus articulatus Pfeiff.