This name is a synonym of Deschampsia cespitosa subsp. levis (Takeda) Nosaka.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 407824) with original publication details: Bot. Mag. (Tokyo) 41: 385 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:398060-1.
This name was in version 1 of The Plant List, record kew-407824.