Children (11 direct children, 13 direct and indirect children):
Saguaro
Carnegiea gigantea
Carnegiea laui
Carnegiea subg. rooksbya
Carnegiea eximia
Carnegiea fulviceps
Carnegiea macrocephala
Carnegiea mezcalaensis
(tree size 1)
Carnegiea nova
Carnegiea scoparia
Carnegiea squamulosa
Carnegiea tetetzo
(tree size 1)