Knotgrass

Polygonum aviculare

leaf · nuts & seeds

Young leaves cooked like spinach, and small seeds ground with flour, like those of buckwheat, its cousin.

Origin

Europe and Asia, widespread

Where to find it

In harvested fields, farmyards and vacant lots; pick it away from cars and dogs.

Season (United States)

May to October

Preparation

The tender shoots are picked away from paths and washed well; the seeds are winnowed before being ground. Its oxalates leach into water: boiling it and throwing the water out takes a good share with it.

Molecules

Beta-carotene (vitamin A) · Lutein and zeaxanthin · Vegetable nitrates · ChlorophyllWhat slows things down Oxalates

Did you know?

Trampled without harm, it grows between paving stones and on paths.