This widespread weed can be found throughout North America and Europe where it grows up to 3 feet tall. The leaves of the plant are edible and can be prepared like spinach. They are rich in vitamins A, B, and C, and calcium, iron, and potassium. They make a nice spring salad and come out most conveniently when our bodies need it most -- after a long winter of overindulgence.
The root should be collected in spring or autumn and has been used by numerous American natives to yield a yellow dye.