Children (5 direct children, 5 direct and indirect children):
Mammillaria wrightii var. wolfii
Mammillaria wrightii var. wilcoxii
Wilcox's nipple cactus
Mammillaria wrightii var. wrightii
Wright's nipple cactus
Mammillaria wrightii subsp. wilcoxii
Mammillaria wrightii f. wolfii