⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50253424, with some changes.

Polygonum barbatum subsp. gracile Danser is a synonym of Polygonum longisetum var. rotundatum A.J. Li

This name is a synonym of Polygonum longisetum var. rotundatum A.J. Li.

The record derives from Tropicos which reports it as a synonym (record 50253424) with original publication details: Bull. Jard. Bot. Buitenzorg, sér. 3, 8: 146, f. 2 146 1927.