Ferocactus johnstonianus Britton & Rose, Cactaceae 4: 287. 1923 sec. Hunt 2006
- ≡Echinocactus johnstonianus (Britton & Rose) Fosberg in Amer. Midl. Naturalist 27: 257. 1942 syn. sec. Kew WCVP (2019)
- ≡Ferocactus acanthodes var. johnstonianus (Britton & Rose) G.Unger, Grossen Kugelkakteen Nordamerikas: 132. 1992 syn. sec. Kew WCVP (2019)