Bog pondweed Potamogeton polygonifolius
![Bog pondweed Potamogeton polygonifolius natural history illustration by Lizzie Harper](https://lizzieharper.co.uk/wp-content/uploads/2018/09/bog-pondweed-potamogeton-polygonifolius-500x296.jpg)
Bog pondweed Potamogeton polygonifolius with fruiting spike emergent above the water, floating leaves and more lanceolate leaves underwater
Bog pondweed Potamogeton polygonifolius with fruiting spike emergent above the water, floating leaves and more lanceolate leaves underwater