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Narrowleaf Knotweed (Polygonum bellardii)

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Polygonum Bellardii, or more commonly know as Narrowleaf Knotweed, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) of the genus Polygonum. Its duration is annual which means it grows for one season only. Polygonum Bellardii or Narrowleaf Knotweed's floral region is North America US Lower 48, specifically in the states of Arkansas, California, Colorado, Connecticut, Delaware, Iowa, Idaho, Illinois, Indiana, Massachusetts, Maryland, Maine, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Vermont and Wisconsin.

  • Category: Dicot
  • Genus: Polygonum
  • Family: Polygonaceae
  • Order: Polygonales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Annual
  • Growth Habit: Forb/herb
  • Native Status: L48 (I) CAN (N)





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