Yarrow Flower (Achillea millefolium)
Yarrow is a common herb that has been highly regarded for its medicinal properties in Britain since Anglo-Saxon times. The most medicinally active part of the plant are the flowering tops. They also have a mild stimulant effect. Today yarrow is valued mainly for its action in colds and influenza, and also for its effect on the circulatory, digestive, excretory, and urinary systems.