Children (50 direct children, 3162 direct and indirect children):
Ariocarpus
(tree size 43)
Livingrock
Aztekium
(tree size 5)
Ferocactus
(tree size 165)
Barrel cactus
Lophophora
(tree size 25)
Echinocactus
(tree size 555)
Thelocactus
(tree size 109)
Escobaria
(tree size 92)
Foxtail cactu
Pediocactus
(tree size 122)
Pincushion cactus
Coryphantha
(tree size 231)
Beehive cactus
Pelecyphora
(tree size 8)
Stenocactus
(tree size 38)
Sclerocactus
(tree size 77)
Fishhook cactus
Epithelantha
(tree size 34)
Button cactus
Turbinicarpus
(tree size 184)
Top cactus
Acharagma
(tree size 6)
Neolloydia
(tree size 54)
Astrophytum
(tree size 80)
Echinomastus
(tree size 31)
Mammillaria
(tree size 1033)
Globe cactus
Cochemiea
(tree size 60)
Dolichothele
(tree size 13)
Solisia
(tree size 2)
Thelocactinae
Geohintonia
(tree size 1)
Leuchtenbergia
(tree size 1)
Mammilloydia
(tree size 3)
Obregonia
(tree size 1)
Ortegocactus
(tree size 1)
Strombocactus
(tree size 12)
Lepidocoryphantha
(tree size 3)
Cactinae
Neogomezia
Stromatocactus
(tree size 1)
Astrophyton
Maierocactus
Brittonrosea
(tree size 18)
Fobea
Napina
Thelomastus
Efossus
(tree size 22)
Brittonia
Aulacothele
Roseia
Ebnerella
(tree size 78)
Haagea
(tree size 1)
Lactomamillara
(tree size 1)
Mamillaria
Mammariella
Mammilaria
Cephalomammillaria
(tree size 2)