This name is a synonym of Callitriche japonica Engelm. ex Hegelm..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 223432) with original publication details: Floribunda, Sisipan 2: 59 2003.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:50425733-2.
This name was in version 1 of The Plant List, record kew-223432, and has not been changed.