Douglas Knotweed, Mountain knotweed
Polygonum douglasii

Family: Polygonaceae

What it is like

A slender annual herb. It grows 10-40 cm tall. The lower leaves are oval. There are sword shaped bracts up the stem. The fruit point downward.

There are about 50 Polygonum species.

Where it is found

It is a temperate plant. It grows in dry slopes in prairies and sub alpine zones in Canada.

Countries/locations it is found in

Canada, North America, USA

How it is used for food

The seeds are parched and ground into a meal. They are used to make porridge.

Edible parts

Leaves, seeds

How it is grown

Its other names

Local names

Synonyms

Polygonum douglasii var. latifolium (Engelm.) Greene; Polygonum montanum (Small) Greene; Polygonum tenue var. commune Engelm.; Polygonum tenue var. latifolium Engelm.;