This name is a synonym of Hydrangea macrophylla var. normalis E.H. Wilson.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50000611) with original publication details: Coll. Ill. Wood. Pl. Jap. 2: 114 1979.
This name was in version 1 of The Plant List, record tro-50000611, and has not been changed.