Sclerocactus whipplei subsp. cloverae (K.D.Heil & J.M.Porter) Hochstätter in Succulenta (Netherlands) 86: 90. 2007
Sclerocactus whipplei subsp. cloverae in Succulenta (Netherlands) 86: 90. 2007
is new combination for Sclerocactus cloverae in Haseltonia 2: 31. 1994