Curly Pondweed - native (Potamogeton crispus)

Family: Potamogetonaceae.

Native.

Occurrence: Grows in water.

Recognise:

• it grows submerged in water
• the leaves are narrow, paired and stalkless
• the leaves have three longitudinal veins, but not finer veins between these.
• the leaves are wavy (i.e. not flat).

Three species of Potamogeton have been recorded locally
Floating Pondweed (P. tricarinatus). Some leaves floating. Floating leaves oval, on long stalks.
Curly Pondweed (P. crispus). All leaves submerged. Leaves finely toothed, wavy (i.e. not flat), leaves without very fine veins bewteen the main veins.
Blunt Pondweed (P. ochreatus). All leaves submerged. Leaves not toothed, not wavy, rounded at the ends, with fine veins between the main leaf veins.