Trichocereus santaensis Rauh & Backeb., Descr. Cact. Nov. 1: 20. 1957 ["1956"] Trichocereus santaensis Rauh & Backeb., Descr. Cact. Nov. 1: 20. 1957 ["1956"]is basionym for Echinopsis santaensis (Rauh & Backeb.) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 97. 1974Taxon for this nameTrichocereus santaensis Rauh & Backeb.