⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50096546, with some changes.

Polygonum douglasii var. montanum Small is a synonym of Polygonum buxiforme var. montanum (Small) R.J. Davis

The record derives from Tropicos which reports it as a synonym (record 50096546) with original publication details: Monogr. Polygonum 118 118 1895.