Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Hydrocharitaceae ⟩ Elodea nuttallii / Nuttall’s waterweed

Elodea nuttallii (Planch.) H. St. John

Nuttall’s waterweed (Hydrocharitaceae)

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

Elodea nuttallii has more acute leaves than the commoner Elodea canadensis.

Byfield (VC32: Northamptonshire); 2015-08-20

 Nuttall’s waterweed / Elodea nuttallii: _Elodea nuttallii_ has more acute leaves than the commoner _Elodea canadensis_.

The flower of Elodea nuttallii is borne on the water’s surface on a long pedicel; all our plants are female.

Willersey (VC33: East Gloucestershire); 2019-08-13

 Nuttall’s waterweed / Elodea nuttallii: The flower of _Elodea nuttallii_ is borne on the water’s surface on a long pedicel; all our plants are female.

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