Thelocactus hexaedrophorus (Lem.) Britton & Rose in Bull. Torrey Bot. Club 49: 251. 1922
Thelocactus hexaedrophorus in Bull. Torrey Bot. Club 49: 251. 1922
is new combination for Echinocactus hexaedrophorus, Cact. Gen. Sp. Nov.: 27–28. 1839
Thelocactus hexaedrophorus in Bull. Torrey Bot. Club 49: 251. 1922