This name is a synonym of Hosta rectifolia Nakai.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 278478) with original publication details: J. Jap. Bot. 59: 180 1984.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:923403-1.
This name was in version 1 of The Plant List, record kew-278478, and has not been changed.