Children (9 direct children, 9 direct and indirect children):
Sclerocactus whipplei subsp. cloverae
Sclerocactus whipplei subsp. busekii
Sclerocactus whipplei var. heilii
Sclerocactus whipplei subsp. heilii
Sclerocactus whipplei var. ilseae
Sclerocactus whipplei var. pygmaeus
Sclerocactus whipplei var. roseus
Sclerocactus whipplei var. intermedius
Sclerocactus whipplei subsp. whipplei