Milfoil Explained

Milfoil is a common name for several plants and may refer to:

• The flowering terrestrial plant Achillea millefolium (known commonly as yarrow)
  • Various species of the genus Achillea (yarrows or milfoils)
• The aquatic plants in the genus Myriophyllum (commonly referred to as water milfoil and other variations including the word milfoil)