⚠ Version 1 of The Plant List has been superseded.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 perfoliatus in version 1.1 of The Plant List.

Potamogeton perfoliatus subsp. richardsonii (A. Benn.) Hultén is a synonym of Potamogeton richardsonii (A.Benn.) Rydb.

This name is a synonym of Potamogeton richardsonii (A.Benn.) Rydb..

The record derives from Tropicos which reports it as a synonym (record 26300032) with original publication details: Fl. Alaska 1: 102 102 1941.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:208904-2.