Hydrangea (Hydrangea) is a biological genus in the family Hydrangeaceae (Hydrangeas) and order Cornales.
Hydrangea cinerea
Hydrangea macrophylla
Hydrangea quercifolia
Hydrangea paniculata
Hydrangea radiata
Hydrangea arborescens
Broussaisia
Jamesia
Decumaria
Fendlerella
Fendlera
Hydrangea
Philadelphus
Deutzia
Schizophragma
Carpenteria
Whipplea