⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-435244, with some changes.

Poa arctica subsp. williamsii (Nash) Hultén is a synonym of Poa arctica R.Br.

This name is a synonym of Poa arctica R.Br..

The record derives from WCSP which reports it as a synonym (record 435244) with original publication details: Fl. Alaska Yukon 202 1942.