Sclerocactus spinosior (Engelm.) D.Woodruff & L.D.Benson in Cact. Succ. J. (Los Angeles) 48(3): 131. 1976
Sclerocactus spinosior in Cact. Succ. J. (Los Angeles) 48(3): 131. 1976
is new combination for Echinocactus whipplei var. spinosior in Trans. Acad. Sci. St. Louis 2: 199. 1863
Sclerocactus spinosior in Cact. Succ. J. (Los Angeles) 48(3): 131. 1976