Fallopia sachalinensis

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Legend for Species Pages

giant knotweed

Fallopia sachalinensis (Polygonum sachalinensis F. Schmidt ex Maxim.)
  • Occurrence in Alberta –
  • Global Invasive Species Database –
  • NatureServe Rank – High/Medium - displaces streamside vegetation causing an increase in bank erosion and clogs small waterways; Spreads mainly by rhizomes
  • Haber, Upland –
  • Haber, Wetland –
  • CWF, Status & Invasive Range –
  • Alberta Revegetation Guidelines –
  • The Nature Conservancy –
  • CBCN –
  • AB Weed – prohibited noxious

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Map references

sample: Map data for T. ramosissima