Children (9 direct children, 12 direct and indirect children):
Eriocactus magnificus
Eriocactus warasii
Eriocactus subg. eonotocactus
Eriocactus subg. eriocactus
(tree size 2)
Eriocactus claviceps
Eriocactus ampliocostatus
Eriocactus grossei
Eriocactus nigrispinus
Eriocactus schumannianus
(tree size 1)