Children (18 direct children, 31 direct and indirect children):
Echinomastus unguispinus
(tree size 4)
Echinomastus johnsonii
(tree size 1)
Johnson's fishhook cactus
Echinomastus gautii
Top cactus
Echinomastus erectocentrus
(tree size 4)
Redspine fishhook cactus
Echinomastus intertextus
(tree size 3)
White fishhook cactus
Echinomastus warnockii
Warnock's fishhook cactus
Echinomastus mariposensis
(tree size 1)
Lloyd's fishhook cactus
Echinomastus uncinatus
Echinomastus macdowellii
Echinomastus durangensis
Echinomastus hispidus
Echinomastus laui
Echinomastus acunensis
Echinomastus centralis
Echinomastus dasyacanthus
Echinomastus kakui
Echinomastus mapimiensis
Echinomastus arizonicus