Echinocactus tetracanthus Lem., Cact. Aliq. Nov.: 15. 1838
Echinocactus tetracanthus, Cact. Aliq. Nov.: 15. 1838
is basionym for Echinocactus sessiliflorus var. tetracanthus, Cact. Gen. Sp. Nov.: 88. 1839
is basionym for Malacocarpus sellowianus var. tetracanthus, Cact. Hort. Dyck., ed. 1849: 25. 1850
is basionym for Echinocactus sellowii f. tetracanthus, Handb. Kakteenkult.: 143. 1907
is basionym for Malacocarpus tetracanthus in Monatsschr. Kakteenk. 4: 143. 1894
is basionym for Notocactus tetracanthus, Notokakteen: 167. 1995
is basionym for Notocactus sessiliflorus f. tetracanthus in Minimus 30: 33. 1999
is basionym for Malacocarpus sellowii var. tetracanthus, Fl. Bras. 4(2): 239. 1890
is basionym for Wigginsia tetracantha in Kaktusy (Brno) 55(Special 2): 25. 2019