This name is a synonym of Calamagrostis arundinacea (L.) Roth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 402987) with original publication details: Bot. Mag. (Tokyo) 35: 149 1921.
This name was in version 1 of The Plant List, record kew-402987.