Ferocactus gracilis subsp. tortulispinus (H.E.Gates) Lodé in Cact.-Avent. Int. 100: 29. 2013
Ferocactus gracilis subsp. tortulispinus in Cact.-Avent. Int. 100: 29. 2013
is new combination for Ferocactus tortulispinus in Cact. Succ. J. (Los Angeles) 4: 343. 1933