The yarrow flower, known scientifically as Achillea millefolium, is a hardy and aromatic perennial herb native to temperate regions of the Northern Hemisphere. It boasts clusters of small, tightly-packed flowers in shades of white, pink, or yellow, atop feathery green foliage. Yarrow is esteemed for its medicinal properties in traditional herbalism and is also valued for its ornamental beauty in gardens and wildflower meadows.