Pictorial guide to the flora of the British Isles

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Elodea canadensis Michx.

Canadian waterweed (Hydrocharitaceae)

 SpreadBias within British IslesDirection of bias
Very widespreadNegligible tendencySE
Plant Atlas 2020
BSBI Distribution Map

Elodea canadensis is an invasive North American aquatic herb found throughout the British Isles; its leaves are blunter than those of Elodea nuttallii.

Radley (VC22: Berkshire); 2015-06-29

 Canadian waterweed / Elodea canadensis: _Elodea canadensis_ is an invasive North American aquatic herb found throughout the British Isles; its leaves are blunter than those of _Elodea nuttallii_.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne