This name is a synonym of Hydrangea macrophylla (Thunb.) Ser..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Icon. Pict. Pl. Rar. 2: 12 1792.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:791605-1.
This name was in version 1 of The Plant List, record kew-2855683.