This name is a synonym of Elodea canadensis Michx..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 309451) with original publication details: Amer. Midl. Naturalist 10: 203 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:90077-2.
This name was in version 1 of The Plant List, record kew-309451, and has not been changed.