Trichocereus clavatus F.Ritter, Kakteen Südamerika 2: 564. 1980 sec. Hunt 2016
- ≡Echinopsis clavatus (F.Ritter) D.R.Hunt in Cactaceae Consensus Init. 4: 5. 1997 syn. sec. Hunt 2016
- ≡Echinopsis clavata (F.Ritter) D.R.Hunt in Cactaceae Consensus Init. 4: 5. 1997 syn. sec. The Plant List v. 1.1 2013
- Holotype: Bolivia, dept. La Paz, prov. Larecaja, Mine Cascabel, 1953, F. Ritter 327 (U)