Sclerocactus pubispinus var. spinosior (Engelm.) S.L.Welsh in Great Basin Naturalist 44(1): 67. 1984
Sclerocactus pubispinus var. spinosior in Great Basin Naturalist 44(1): 67. 1984
is new combination for Echinocactus whipplei var. spinosior in Trans. Acad. Sci. St. Louis 2: 199. 1863