Yarrow (Achillea millefolium) is a medicinal herb from the Asteraceae family, traditionally used to treat wounds, digestive issues, and inflammation. Native to temperate regions of the Northern Hemisphere, yarrow is valued for its antiseptic, anti-inflammatory, and astringent properties. It is commonly used in teas or ointments to relieve muscle pain, heal wounds, and reduce internal inflammation, making it a staple in herbal medicine.