This name is a synonym of Cabomba haynesii Wiersema.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 22600064) with original publication details: Castanea 18: 123 1953.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:39040-2.
This name was in version 1 of The Plant List, record tro-22600064.