Cephalocereus macrocephalus F.A.C. Weber ex K. Schum., Gesamtbeschr. Kakt.: 197. 1897 sec. Tapia & al. 2017
- =Pilocereus macrocephalus (F.A.C. Weber ex K. Schum.) F.A.C. Weber, Dict. horticult. 2: 966. 1898 syn. sec. Tapia & al. 2017
- =Cereus macrocephalus (F.A.C. Weber ex K. Schum.) A. Berger in Rep. (Annual) Missouri Bot. Gard. 16: 62. 1905 syn. sec. Tapia & al. 2017
- =Pilocereus ruficeps F.A.C. Weber ex Rol.-Goss. in Bull. Mus. Hist. Nat. (Paris) 11: 509. 1905 syn. sec. Tapia & al. 2017
- =Cereus ruficeps (F.A.C. Weber) Vaupel in Monatsschr. Kakteenk. 23: 27. 1913 syn. sec. Tapia & al. 2017
- =Pachycereus ruficeps (F.A.C. Weber) Britton & Rose, Cactaceae (Britton & Rose) 2: 75. 1920 syn. sec. Tapia & al. 2017
- =Neobuxbaumia macrocephala (F.A.C. Weber ex K. Schum.) E.Y. Dawson in Cact. Succ. J. (Los Angeles) 24: 173. 1952 syn. sec. Tapia & al. 2017
- =Mitrocereus ruficeps (F.A.C. Weber) Backeb., Cactaceae (Backeberg) 4: 2244. 1960 syn. sec. Tapia & al. 2017
- =Carnegiea macrocephala (F.A.C. Weber ex K. Schum.) P.V. Heath in Calyx 2: 109. 1992 syn. sec. Tapia & al. 2017