Yellow DockYellow dock (Rumex crispus) is a common weed. The leaf stalks are used in salads. The roots, fruits, leaves, and flowers are used as medicine.
Yellow dock contains chemicals that work as laxatives and have anti-inflammatory effects. It also contains chemicals that might kill parasites, bacteria, and fungi.
People use yellow dock for constipation, diabetes, low levels of healthy red blood cells (anemia) due to iron deficiency, and many other conditions, but there is no good scientific evidence to support these uses.
Don't confuse yellow dock with sorrel or wood sorrel. These are not the same.