⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50134905, with some changes.
This name is a synonym of Polygonum sibiricum var. thomsonii Meisn..
The record derives from Tropicos which reports it as a synonym (record 50134905) with original publication details: Nordic J. Bot. 9: 354 354 1989.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:956047-1.