Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Potamogetonaceae ⟩ Potamogeton obtusifolius / blunt-leaved pondweed

Potamogeton obtusifolius Mert. & W. D. J. Koch

blunt-leaved pondweed (Potamogetonaceae)

 SpreadBias within British IslesDirection of bias
WidespreadNegligible tendencyN
Plant Atlas 2020
BSBI Distribution Map

Potamogeton obtusifolius grows in still, acidic waters across the British Isles.

Bramshill (VC12: North Hampshire); 2019-08-07

 blunt-leaved pondweed / Potamogeton obtusifolius: _Potamogeton obtusifolius_ grows in still, acidic waters across the British Isles.

The leaves of Potamogeton obtusifolius have only 3–5 parallel veins, and end in a blunt or rounded tip, sometimes with a small mucro.

Bramshill (VC12: North Hampshire); 2019-08-07

 blunt-leaved pondweed / Potamogeton obtusifolius: The leaves of _Potamogeton obtusifolius_ have only 3–5 parallel veins, and end in a blunt or rounded tip, sometimes with a small mucro.

The fruit of Potamogeton obtusifolius are borne under water, and have short beaks, unlike the long-beaked Potamogeton crispus.

Bramshill (VC12: North Hampshire); 2019-08-07

 blunt-leaved pondweed / Potamogeton obtusifolius: The fruit of _Potamogeton obtusifolius_ are borne under water, and have short beaks, unlike the long-beaked _Potamogeton crispus_.

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