Pilosocereus gaumeri (Britton & Rose) Backeb., Cactaceae 4: 2462–2463. 1960 sec. Franck & al. 2019
- ≡Cephalocereus gaumeri Britton & Rose, Cactaceae 2: 47. 1920 syn. sec. Franck & al. 2019
- ≡Cereus gaumeri (Britton & Rose) Standl. in Publ. Field Mus. Nat. Hist., Bot. Ser. 3: 366. 1930 syn. sec. Franck & al. 2019
- ≡Pilocereus gaumeri (Britton & Rose) F.M.Knuth, Kaktus-ABC: 330. 1936 ["1935"] syn. sec. Franck & al. 2019
- Lectotype (designated by Zappi, D. 1994: 151): Mexico, Yucatán, near Progreso, 1918, Gaumer 23934 (US: 00115539, isolectotypes: NY 00120553, NY 00120554, NY 00120555)