⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2721876, and has not been changed.
This name is a synonym of Circaea lutetiana subsp. quadrisulcata (Maxim.) Asch. & Magnus.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Prim. Fl. Amur. 106 1859.