Irish wildflowers BSBI map

Perfoliate Pondweed, Potamogeton perfoliatus, Dréimire uisce
Photographs: The Gearagh, Co. Cork

Perfoliate Pondweed / Clasping-leaf Pondweed
Potamogeton perfoliatus
Dréimire uisce
Family: Potamogetonaceae

Flowering May-August. Rhizomatous aquatic perennial. Native.

All the stalkless, thin, translucent leaves are submerged, lanceolate or ovoid with the base completely clasping the stem. Stipules are initially present but soon disappear. Identification confirmed by Paul Green

Widespread in neutral to mildly acidic ponds and lakes and in slow-flowing rivers and streams throughout most of Ireland.

Perfoliate Pondweed, Potamogeton perfoliatus, Dréimire uisce

Perfoliate Pondweed, Potamogeton perfoliatus, Dréimire uisce
Perfoliate Pondweed, Potamogeton perfoliatus, Dréimire uisce

Please Contact me if you find mistakes. All images are copyright.