Echinopsis quadratiumbonata (F.Ritter) D.R.Hunt in Cactaceae Consensus Init. 4: 5. 1997
Echinopsis quadratiumbonata in Cactaceae Consensus Init. 4: 5. 1997
is new combination for Trichocereus quadratiumbonatus, Kakteen Südamerika 2: 566, fig. 1980
Echinopsis quadratiumbonata in Cactaceae Consensus Init. 4: 5. 1997