⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-26300551, with some changes.
This name is a synonym of Potamogeton octandrus .
The record derives from Tropicos which reports it as a synonym (record 26300551
) with original publication details: J. Jap. Bot. 20(6-7): 331 331 1944.