Children (6 direct children, 6 direct and indirect children):
Opuntia acanthocarpa subsp. ganderi
Opuntia acanthocarpa var. coloradensis
Opuntia acanthocarpa var. ramosa
Opuntia acanthocarpa var. major
Opuntia acanthocarpa var. ganderi
Opuntia acanthocarpa var. thornberi