Pyrrhocactus robustus F.Ritter in Succulenta (Netherlands) 1960: 65. 1960
Pyrrhocactus robustus in Succulenta (Netherlands) 1960: 65. 1960
is basionym for Eriosyce curvispina var. robusta, Eriosyce (Cactac.) Gen. Revis. Ampl.: 117. 1994
is basionym for Neochilenia robusta, Cactaceae 6: 3781. 1962