Myriophyllum spicatum

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Legend for Species Pages

Eurasian Water-milfoil

Myriophyllum spicatum L.
  • Moss, Flora of Alberta – No
  • Global Invasive Species Database – Yes [1]
  • NatureServe Rank – High
  • Haber, Upland – No
  • Haber, Wetland – Principal
  • CWF, Status & Invasive Range – High, BC, esp PQ, ON
  • Alberta Revegetation Guidelines – No
  • The Nature Conservancy – Yes? var. not specified
  • CBCN – No
  • AB Weed – Prohibited Noxious


Not yet confirmed to occur in Alberta, nor ID MT SK

[2] Link to Wikipedia, Myriophyllum spicatum - "...likely first introduced to North America in the 1940s[2] where it has become an invasive species in some areas. By the mid 1970s, watermilfoil had also covered thousands of hectares in British Columbia and Ontario, Canada.[3] Eurasian watermilfoil is now found across most of Northern America where it is recognized as a noxious weed.[4]..."

[3] Link to USDA Plants profile for Myriophyllum spicatum L. Eurasian watermilfoil

[4] Link to Alberta Invasive Speciess Council factsheet for Eurasian Water Milfoil

Myriexal 1.jpg