Homotypic synonym according to GBIF classification (Originally found in sources as doubtful taxon within Sclerocactus glaucus (K.Schum.) L.D.Benson)
Sclerocactus spinosior var. schleseri (Heil & Welsh) R. May
Homotypic synonym according to GBIF classification (Originally found in sources as doubtful taxon within Sclerocactus spinosior (Engelm.) D.Woodruff & L.D.Benson)
Sclerocactus spinosior var. schlesseri (K. D. Heil & S. L. Welsh) Hochstätter
Homotypic synonym according to GBIF classification (Originally found in sources as doubtful taxon within Sclerocactus spinosior (Engelm.) D.Woodruff & L.D.Benson)
? centralis J.M.Coult.
Homotypic synonym according to GBIF classification (Originally found in sources as doubtful taxon within Cactaceae)