Children (14 direct children, 34 direct and indirect children):
Epithelantha micromeris
(tree size 13)
Pingpong ball cactus
Epithelantha bokei
Boke's button cactus
Epithelantha petri
Epithelantha petrii
Epithelantha potosina
Epithelantha pulchra
Epithelantha cryptica
Epithelantha ilariae
Epithelantha unguispina
(tree size 1)
Epithelantha polycephala
Epithelantha greggii
(tree size 2)
Epithelantha densispina
Epithelantha rufispina
Epithelantha pachyrhiza
(tree size 4)
Epithelantha spinosior