⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-26000874, with some changes.

Polygonum opelousanum Riddell ex Small is a synonym of Persicaria hydropiperoides (Michx.) Small

This name is a synonym of Persicaria hydropiperoides (Michx.) Small.

The record derives from Tropicos which reports it as a synonym (record 26000874) with original publication details: Bull. Torrey Bot. Club 19(12): 354 354 1892.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1080042-2.