⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2721833, with some changes.
This name is a synonym of Circaea × intermedia .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Carian Cat. Pl. Saône-et-Loire 154 1863.