⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Potamogeton japonicus in version 1.1 of The Plant List.
This name is a synonym of Potamogeton nodosus .
The record derives from Tropicos which reports it as a synonym (record 26300546
) with original publication details: Enum. Pl. Jap. 2(1): 15 15 1877.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:603260-1
.