This name is a synonym of Alisma gramineum Lej..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 274718) with original publication details: Bot. Gaz. 43: 211 1907.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:8468-2.
This name was in version 1 of The Plant List, record kew-274718.