Perfoliate Pondweed - Potamogeton perfoliatus


All leaves submerged, dark green, oval to rounded, clasping the stem with heart shaped bases, minutely toothed at least when young.

Identification difficulty

Rivers, canals, reservoirs - less frequently in ponds.

When to see it

June to September.

Life History


UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Locally fairly frequent in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 50 of the 617 tetrads.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map