Sclerocactus wrightiae L.D.Benson in Cact. Succ. J. (Los Angeles) 38(2): 55–57, f. 5–6. 1966 sec. Parfitt & Gibson 2003
- ≡Pediocactus wrightiae (L.D.Benson) Arp in Cact. Succ. J. (Los Angeles) 44(5): 222. 1972 syn. sec. Parfitt & Gibson 2003
- ≡Ferocactus wrightiae (L.D.Benson) N.P.Taylor in Cact. Succ. J. Gr. Brit. 41: 90. 1979 syn. sec. Parfitt & Gibson 2003