⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Polygonum douglasii in version 1.1 of The Plant List.

Polygonum douglasii subsp. austiniae (Greene) J.C. Hickman is a synonym of Polygonum douglasii subsp. austiniae (Greene) A.E.Murray

This name is a synonym of Polygonum douglasii subsp. austiniae (Greene) A.E.Murray.

The record derives from Tropicos which reports it as a synonym (record 50118136) with original publication details: Madroño 31(4): 250 250 1984.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:283509-2.