Burdock is native to Europe and Asia, but it now grows around the world. It’s cultivated in Europe and China and grows up to 5 feet. It produces red-purple flowers and also produces burrs. This carrot-like plant grows in hedges and ditches and is eaten as a vegetable in Japan called gobo. As the plant ages it grows bitter, but while young, all parts of the plant are edible. Native Americans used the plant as food and even made candy by boiling the stem in maple syrup.