Children (7 direct children, 17 direct and indirect children):
Calylophus serrulatus
Yellow sundrops
Calylophus berlandieri
(tree size 2)
Berlandier's sundrops
Calylophus hartwegii
(tree size 6)
Hartweg's sundrops
Calylophus lavandulifolia
Calylophus toumeyi
Toumey's sundrops
Calylophus tubicula
(tree size 2)
Texas sundrops
Calylophus lavandulifolius
Lavenderleaf sundrops