Plants!


Tyrol Knapweed (Centaurea nigrescens)

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Centaurea Nigrescens, or more commonly know as Tyrol Knapweed, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) of the genus Centaurea. Its duration is perennial which means it will grow year after year. Centaurea Nigrescens or Tyrol Knapweed's floral region is North America US Lower 48, specifically in the states of California, Connecticut, Idaho, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New York, Ohio, Oregon, Pennsylvania, Rhode Island, Virginia, Vermont, Washington, Wisconsin and Wyoming.

  • Category: Dicot
  • Genus: Centaurea
  • Family: Asteraceae
  • Order: Asterales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Forb/herb
  • Native Status: L48 (I) CAN (I)
  • State Noxious Status: OR (BDW Q) WA (CAW NWSPQ)
  • State Noxious Common Name: OR (short fringed knapweed) WA (Vochin knapweed)
  • PLANTS Invasive Status: STATE





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