Echinopsis manguinii (Backeb.) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 96. 1974 Echinopsis manguinii (Backeb.) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 96. 1974is new combination for Trichocereus manguinii Backeb. in Cactus (Paris) 35: 147. 1953Taxon for this nameEchinopsis manguinii (Backeb.) H.Friedrich & G.D.Rowley