Synonyms
Sclerocactus whipplei subsp. heilii (Castetter, P.Pierce & K.H.Schwer.) D.R.Hunt
Sclerocactus whipplei var. heilii Castetter, P.Pierce & K.H.Schwer.
Sclerocactus whipplei var. reevesii Castetter, P.Pierce & K.H.Schwer.
Sclerocactus cloverae subsp. brackii K.D.Heil & J.M.Porter
Pediocactus cloverae (K.D.Heil & J.M.Porter) Halda
Sclerocactus whipplei subsp. cloverae (K.D.Heil & J.M.Porter) Hochstätter
Sclerocactus whipplei subvar. aztecia Hochstätter
Pediocactus cloverae subsp. brackii (K.D.Heil & J.M.Porter) Halda