Pediocactus sileri (Engelm. ex J.M.Coult.) L.D.Benson in Cact. Succ. J. (Los Angeles) 33(2): 53. 1961 sec. Parfitt & Gibson 2003
- ≡Echinocactus sileri Engelm. ex J.M.Coult. in Contr. U.S. Natl. Herb. 3(7): 376. 1896 syn. sec. Parfitt & Gibson 2003
- ≡Utahia sileri (Engelm. ex J.M.Coult.) Britton & Rose, Cactaceae 3: 215. 1922 syn. sec. TROPICOS 1988+