Acanthocalycium ferrarii Rausch in Succulenta (Netherlands) 55: 82. 1976
Acanthocalycium ferrarii in Succulenta (Netherlands) 55: 82. 1976
is basionym for Acanthocalycium thionanthum subsp. ferrarii in Willdenowia 51: 264. 2021
is basionym for Echinopsis thionantha subsp. ferrarii in Cactaceae Syst. Init. 14: 14. 2002
is basionym for Lobivia thionantha var. ferrarii, Lobivia 85: 156. 1987 ["1985"]
Holotype: Argentina, Tucumán, a Santa Maria ad septemtriones versus, alt. 3500 m, W. Rausch 572 (W)