Pilocereus hapalacanthus Werderm., Bras. Säulenkakt.: 110. 1933
Pilocereus hapalacanthus, Bras. Säulenkakt.: 110. 1933
is basionym for Pseudopilocereus hapalacanthus in Beitr. Biol. Pflanzen 44: 252. 1968
is basionym for Cephalocereus hapalacanthus, Cacti, ed. 1: 107. 1937
is basionym for Pilosocereus catingicola subsp. hapalacanthus in Succulenta (Netherlands) 74: 134. 1995
is basionym for Pilosocereus hapalacanthus in Cact. Succ. J. Gr. Brit. 19(3): 67. 1957