⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2574665, with some changes.

Polygonum aviculare subsp. boreale (Lange) Karlsson is a synonym of Polygonum boreale (Lange) Small

This name is a synonym of Polygonum boreale (Lange) Small.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Svensk Bot. Tidskr. 91: 249 1997 publ. 1998.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1000865-1.