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Nuttall’s waterweed

Nuttall’s waterweed  Elodea nuttallii


Photo: GBNNSS with thanks to British Waterways

  • Appearance: Submerged, perennial freshwater plant, whorls of 3-4 leaves, branching stems up to 3 metres in length.


  • Growth: Found in still or slow flowing water, vigorous growth forming dense mats, small fragments can regrow.
  • Impact: Negative impact on aquatic ecosystems, outcompetes and displaces native plants, forms monocultures impacting on species diversity, dense growth can clog waterways and contribute to flooding.


  • Pathway: Deliberate release or improper disposal of this pond plant into the wild.



  • What to do if you see Nuttall’s waterweed for sale or other offences being committed: Make a report by following the guidance here.


  • What to do if you see this plant in the wild: Record it with a photograph (where possible).