This name is a synonym of Hydrangea anomala D. Don.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50077904) with original publication details: Guihaia 14(2): 120 1994.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:978543-1.
This name was in version 1 of The Plant List, record tro-50077904, and has not been changed.