Knotweed

Polygonum spp.

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• seeds are edible.

• seeds can be eaten whole or pounded into meal.

• plants can be cooked and eaten.

• varieties in the Pacific Northwest include Common knotgrass (Polygonum aviculare), Common knotweed (Polygonum arenastrum) and Mountain knotweed (Polygonum douglasii).

• grows as a weed in a wide range, including dry areas, plains, and subapline regions.

• raw plants eaten in quantity may cause stomach upset and/or diarrhea.