Children (142 direct children, 194 direct and indirect children):
Hydrangea anomala
(tree size 4)
Climbing hydrangea
Hydrangea paniculata
(tree size 3)
Panicled hydrangea
Hydrangea macrophylla
(tree size 5)
Bigleaf hydrangea
Hydrangea petiolaris
(tree size 1)
Hydrangea radiata
Silverleaf hydrangea
Hydrangea arborescens
(tree size 4)
Wild hydrangea
Hydrangea quercifolia
Oakleaf hydrangea
Hydrangea serrata
(tree size 7)
Hydrangea macrophylla subsp. serrata
Hydrangea heteromalla
Hydrangea aspera
(tree size 1)
Hydrangea involucrata
(tree size 7)
Hydrangea zhewanensis
Hydrangea candida
Hydrangea hirta
(tree size 2)
Hydrangea mangshanensis
Hydrangea bretschneideri
Hydrangea kwangsiensis
(tree size 1)
Hydrangea chungii
Hydrangea davidii
Hydrangea hypoglauca
(tree size 2)
Hydrangea chinensis
(tree size 2)
Hydrangea coacta
Hydrangea gracilis
Hydrangea coenobialis
Hydrangea dumicola
Hydrangea lingii
Hydrangea caudatifolia
Hydrangea kawakamii
Hydrangea cinerea
Ashy hydrangea
Hydrangea longifolia
Hydrangea integrifolia
Hydrangea kwangtungensis
Hydrangea linkweiensis
(tree size 1)
Hydrangea robusta
Hydrangea scandens
Hydrangea serratifolia
Hydrangea sungpanensis
Hydrangea stenophylla
Hydrangea stylosa
Hydrangea shaochingii
Hydrangea obovatifolia
Hydrangea rosthornii
Hydrangea glabripes
Hydrangea rotundifolia
Hydrangea macrocarpa
Hydrangea macrosepala
Hydrangea xanthoneura
(tree size 1)
Hydrangea villosa
Hydrangea luteovenosa
(tree size 1)
Hydrangea longipes
(tree size 3)
Hydrangea sargentiana
Hydrangea strigosa
(tree size 1)
Hydrangea vinicolor
Hydrangea longialata
Hydrangea glaucophylla
(tree size 1)
Hydrangea discocarpa
Hydrangea mollis
Hydrangea taronensis
Hydrangea angustipetala
(tree size 1)
Hydrangea mandarinorum
Hydrangea asterolasia
Hydrangea mathewsii
Hydrangea nebulicola
Hydrangea tarapotensis
Hydrangea peruviana
(tree size 1)
Hydrangea preslii
Hydrangea jelskii
Hydrangea steyermarkii
Hydrangea amagiana
Hydrangea taiwaniana
Hydrangea sikokiana
Hydrangea mizushimarum
Hydrangea tetracarpa
Hydrangea virens
Hydrangea seemannii
Hydrangea knowltonii
Hydrangea sect. hydrangea
(tree size 3)
Hydrangea sect. calyptranthe
Hydrangea sect. petalanthae
Hydrangea fulvescens
Hydrangea sect. asperae
Hydrangea sect. broussaisia
Hydrangea sect. cardiandra
Hydrangea sect. chinenses
Hydrangea sect. decumaria
Hydrangea sect. deinanthe
Hydrangea sect. dichroa
Hydrangea sect. hirtae
Hydrangea sect. macrophyllae
Hydrangea sect. schizophragma
Hydrangea sect. stylosae
Hydrangea amamiohsimensis
Hydrangea ampla
Hydrangea arguta
Hydrangea bifida
Hydrangea caerulea
Hydrangea corylifolia
Hydrangea crassa
Hydrangea daimingshanensis
Hydrangea densifolia
Hydrangea fauriei
Hydrangea febrifuga
Hydrangea glaucescens
Hydrangea hirsuta
Hydrangea mollissima
Hydrangea obtusifolia
Hydrangea platyarguta
Hydrangea schizomollis
Hydrangea tomentella
Hydrangea viburnoides
Hydrangea yaoshanensis
Hydrangea albostellata
Hydrangea oblongifolia
Hydrangea vestita
Hydrangea yunnanensis
Hydrangea thunbergii
Hydrangea acuminata
Hydrangea liukiuensis
Hydrangea hortensia
Hydrangea altissima
Hydrangea ashei
Hydrangea chloroleuca
Hydrangea formosana
Hydrangea sachalinensis
Hydrangea yayeyamensis
Hydrangea yesoensis
Hydrangea barbara
Hydrangea integerrima
Hydrangea opuloides
Hydrangea ofeliae
Hydrangea hydrangeoides
Hydrangea alternifolia
Hydrangea giraldii
Hydrangea subsect. asperae
Hydrangea subsect. heteromallae
Hydrangea oerstedii
Hydrangea taquetii
Hydrangea japonica
Hydrangea subsect. macrophyllae
Hydrangea kawagoeana
Hydrangea grosseserrata
Hydrangea stellata