Pediocactus papyracanthus (Engelm.) L.D.Benson in Cact. Succ. J. (Los Angeles) 34(2): 61. 1962
Pediocactus papyracanthus in Cact. Succ. J. (Los Angeles) 34(2): 61. 1962
is new combination for Mammillaria papyracantha in Mem. Amer. Acad. Arts, n.s. 4(1): 49. 1849