Sclerocactus spinosior subsp. nyensis (Hochstätter) Lüthy in Cactaceae Syst. Init. 23: 28. 2008
Sclerocactus spinosior subsp. nyensis in Cactaceae Syst. Init. 23: 28. 2008
is new combination for Sclerocactus nyensis in Succulenta (Netherlands) 71(6): 253–255. 1992