⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Hydrangea opuloides in version 1.1 of The Plant List.

Hydrangea opuloides var. plena Rehder 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 50078468) with original publication details: Stand. Cycl. Hort. 1: 1621 1621 1915.