Pediocactus spinosior var. schlesseri Sclerocactus spinosior subsp. blainei Sclerocactus spinosior var. blainei Sclerocactus schlesseri Pediocactus spinosior subsp. blainei Sclerocactus spinosior var. schlesseri
Taxonomic data from World Flora Online, accessed June 20, 2024