This name is a synonym of Matteuccia struthiopteris subsp. sinuata (Thunb.) Á. Löve & D. Löve.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26626085) with original publication details: Fl. Jap. 332 1784.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17216560-1.
This name was in version 1 of The Plant List, record tro-26626085, and has not been changed.