Sclerocactus papyracanthus (Engelm.) N.P.Taylor in Bradleya 5: 94. 1987
Sclerocactus papyracanthus in Bradleya 5: 94. 1987
is new combination for Mammillaria papyracantha in Mem. Amer. Acad. Arts, n.s. 4(1): 49. 1849
Sclerocactus papyracanthus in Bradleya 5: 94. 1987