⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50000609, with some changes.

Hydrangea macrophylla var. otaksa (E.H. Wilson) L.H. Bailey is a synonym of Hydrangea macrophylla (Thunb.) Ser.

This name is a synonym of Hydrangea macrophylla (Thunb.) Ser..

The record derives from Tropicos which reports it as a synonym (record 50000609) with original publication details: Man. Cult. Pl. 475 475 1949.