Children (7 direct children, 10 direct and indirect children):
Ancistrocactus brevihamatus
(tree size 1)
Ancistrocactus megarhizus
Ancistrocactus scheeri
Ancistrocactus uncinatus
(tree size 2)
Ancistrocactus pinkavanus
Ancistrocactus crassihamatus
Ancistrocactus mathssonii