Yarow or Yarrow: How To spell?

The word Yarow is misspelled against Yarrow, a noun meaning "An American and European composite plant (Achillea Millefolium) with very finely dissected leaves and small white corymbed flowers. It has a strong, and somewhat aromatic, odor and taste, and is sometimes used in making beer, or is dried for smoking. Called also milfoil, and nosebleed."