Echinomastus unguispinus subsp. durangensis (Runge) U. Guzmán in Cactaceae Syst. Init. 16: 17. 2003 sec. Guzmán & al. 2003
- ≡Echinocactus durangensis Runge in Hamburger Garten-Blumenzeitung. 46: 231. 1890 syn. sec. Guzmán & al. 2003
- =Echinomastus durangensis (Runge) Britton & Rose, Cactaceae (Britton & Rose) 3: 152. 1922 syn. sec. Guzmán & al. 2003
- =Neolloydia durangensis (Runge) L.D. Benson in Cact. Succ. J. (Los Angeles) 46: 81. 1974 syn. sec. Guzmán & al. 2003
- =Echinomastus unguispinus var. durangensis (Runge) Bravo in Cact. Suc. Mex. 25: 65. 1980 syn. sec. Guzmán & al. 2003
- =Thelocactus durangensis (Runge) G.D. Rowley in Excelsa 12: 31. 1986 syn. sec. Guzmán & al. 2003
- =Sclerocactus unguispinus var. durangensis (Runge) N.P. Taylor in Bradleya 5: 94. 1987 syn. sec. Guzmán & al. 2003
- =Pediocactus unguispinus var. durangensis (Runge) Halda in Acta Mus. Richnov., Sect. Nat., 5: 26. 1998 syn. sec. Guzmán & al. 2003