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Floating pennywort

Floating pennywort Hydrocotyle ranunculoides



  • Appearance: Perennial freshwater plant, shiny kidney shaped bluntly toothed leaves (7cm), usually dissected to the middle, fleshy stems. Upright greenish flowers without petals.


  • Growth: Vigorous growth forming dense mats that can affect access and impede water flow, small fragments can regrow.
  • Impact: Negative impact on aquatic ecosystems, outcompetes native plants, affecting biodiversity, can prevent growth of other aquatic plants, prevent navigation and recreation and cause water quality issues.


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



  • What to do if you see Floating pennywort 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).