⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50101059, with some changes.

Polygonum sibiricum subsp. thomsonii (Meisn. ex Steward) Rech. f. & Schiman-Czieka is a synonym of Polygonum sibiricum var. thomsonii Meisn.

This name is a synonym of Polygonum sibiricum var. thomsonii Meisn..

The record derives from Tropicos which reports it as a synonym (record 50101059) with original publication details: Fl. Iranica 56: 54 54 1968.