This name is a synonym of Platycodon grandiflorus (Jacq.) A.DC..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 359553) with original publication details: Enum. Sperm. Jap. 2: 102 1952.
This name was in version 1 of The Plant List, record kew-359553, and has not been changed.