Common Yarrow or Milfoil [Achillea millefolium] found on the Blue Ridge Parkway Shut-In Trail on 25 May 2013. The USDA Plants website shows that it grows all over the United States and Canada, and it’s a member of the Aster (Asteraceae) family. Newcomb’s Wildflower Guide, pages 220-221, says that it can be found in fields …
