Photo: Hydrangea serrata 1.

Gallery: 
Hydrangea
Botanical name: 
Hydrangea serrata
Photo: Hydrangea serrata 1.

cv. ('Bluebird'?) One flower cluster left on a smallish bush. Marburg bot.g., Germany. Planted. 2006-10-02.

Hydrangea serrata (Thunb.) Ser.
Sven.: purpurhortensia.
Bot. syn.: Hydrangea acuminata Sieb. & Zucc.

The copyright information is here.