Achillea millefolium or Yarrow is a flowering plant in the family Asteraceae, native to the Northern Hemisphere.
Other common names for this species include gordaldo, nosebleed plant, old man's pepper, devil's nettle, sanguinary, milfoil, soldier's woundwort, thousand-leaf, and thousand-seal.
The plant commonly flowers from May through June. It is often found in the mildly disturbed soil of grasslands and open forests. The plant has a strong, sweet scent, similar to chrysanthemums.
It has been used as a medicinal plant.