⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-364232, with some changes.
This name is a synonym of Campanula glomerata subsp. speciosa (Hornem. ex Spreng.) Domin.
The record derives from WCSP which reports it as a synonym (record 364232) with original publication details: J. Jap. Bot. 20: 187 1944.