Children (9 direct children, 9 direct and indirect children):
Populus deltoides subsp. deltoides
Eastern cottonwood
Populus deltoides subsp. monilifera
Plains cottonwood
Populus deltoides subsp. wislizeni
Rio grande cottonwood
Populus deltoides var. monilifera
Populus deltoides var. missouriensis
Populus deltoides var. virginiana
Populus deltoides var. occidentalis
Populus deltoides var. fremontii
Populus deltoides var. mesetae