This name is a synonym of Vallisneria natans (Lour.) H.Hara.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 308978) with original publication details: J. Jap. Bot. 49: 136 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:883406-1.
This name was in version 1 of The Plant List, record kew-308978.