Carnegiea gigantea (Engelm.) Britton & Rose in J. New York Bot. Gard. 9: 188. 1908 sec. Hunt 2016
- ≡Cereus giganteus Engelm. in Amer. J. Sci. Arts, ser. 2, 14: 335. 1852 syn. sec. Guzmán & al. 2003
- =Pilocereus engelmannii Lem. in Ill. Hort. 9: Misc. 97. 1862 syn. sec. Guzmán & al. 2003
- =Pilocereus giganteus (Engelm.) Rümpler, Handb. Cacteenk. (ed. 2): 662. 1886 syn. sec. Guzmán & al. 2003
- =Carnegiea gigantea f. aberrans P.V. Heath in Calyx 2: 108. 1992 syn. sec. Heath 1992
- =Carnegiea gigantea f. cristata P.V. Heath in Calyx 2: 108. 1992 syn. sec. Heath 1992