Twoleaf Watermilfoil (Myriophyllum heterophyllum)


Myriophyllum Heterophyllum, or more commonly know as Twoleaf Watermilfoil, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) of the genus Myriophyllum. Its duration is perennial which means it will grow year after year. Myriophyllum Heterophyllum or Twoleaf Watermilfoil's floral region is North America US Lower 48, specifically in the states of Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia and Wisconsin.

  • Category: Dicot
  • Genus: Myriophyllum
  • Family: Haloragaceae
  • Order: Haloragales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Forb/herb
  • Native Status: L48 (N) CAN (N)
  • State Noxious Status: CT (IB) MA (P) ME (IAP) VT (CAW)
  • State Noxious Common Name: CT (variable-leaf watermilfoil) MA (variable water-milfoil two-leaved water-milfoil) ME (variable-leaf water milfoil) VT (variable-leaved milfoil)
  • PLANTS Invasive Status: STATE
  • State T/E Status: KY (SC) OH (E) PA (E)
  • State T/E Common Name: KY (broadleaf water-milfoil) OH (two-leaved water-milfoil) PA (broad-leaved water-milfoil)
  • National Wetland Indicator Status: OBL
  • Regional Wetland Indicator Status: 1(OBL) 2(OBL) 3(OBL) 4(OBL) 5(OBL) 6(OBL) 7(OBL)

Browse Plants by State

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming