Hydrangea serrata (Thunb.) Ser. Sven.: purpurhortensia. Bot. syn.: Hydrangea acuminata Sieb. & Zucc.
var. thunbergii. Flower cluster, bright blue and white. Tokyo bot.g., Japan. Planted. 2008-06-10.
cv. ('Bluebird'?) Flowers, white around blue. Marburg bot.g., Germany. Planted. 2006-10-02.
cv. ('Bluebird'?) One flower cluster left on a smallish bush. Marburg bot.g., Germany. Planted. 2006-10-02.
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