Children (7 direct children, 7 direct and indirect children):
Hydrangea involucrata var. hortensis
Hydrangea involucrata var. idzuensis
Hydrangea involucrata f. leucantha
Hydrangea involucrata var. multiplex
Hydrangea involucrata f. plenissima
Hydrangea involucrata f. sterilis
Hydrangea involucrata var. tokarensis