⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50134260, and has not been changed.

Polygonum thunbergii var. maackianum Maxim. ex Franch. & Sav. is a synonym of Polygonum maackianum Regel

This name is a synonym of Polygonum maackianum Regel.

The record derives from Tropicos which reports it as a synonym (record 50134260) with original publication details: Enum. Pl. Jap. 2: 475 475 1878.