Ferocactus diguetii (F.A.C. Weber) Britton & Rose, Cactaceae (Britton & Rose) 3: 131. 1922 sec. Hunt 2016
- ≡Echinocactus diguetii F.A.C. Weber in Bull. Mus. Hist. Nat. (Paris) 4: 100. 1898 syn. sec. Guzmán & al. 2003
- =Ferocactus diguetii var. carmenensis G.E. Linds. in Cact. Succ. J. (Los Angeles) 27: 167. 1955 syn. sec. Pilbeam & Bowdery 2005
- =Ferocactus diguetii subsp. carmenesis (G.E. Linds.) F. Wolf & R. Wolf, Ferokakt. Baja California: 93. 2004 syn. sec. Pilbeam & Bowdery 2005