Potamogeton

Potamogeton foliosus

Leafy pondweed

Potamogeton friesii

Fries' pondweed

Potamogeton gramineus

Various-leaf pondweed

Potamogeton hillii

Potamogeton nodosus

Longleaf pondweed

Potamogeton perfoliatus

Perfoliate pondweed

Potamogeton pulcher

Potamogeton pusillus

Lesser pondweed

Potamogeton rutilus

Shetland pondweed

Potamogeton tricarinatus

Potamogeton zosteriformis

Potamogeton compressus

Grass-wrack pondweed

Potamogeton alpinus

Alpine pondweed

Potamogeton alpinus subsp. alpinus

Potamogeton octandrus subsp. octandrus

Potamogeton octandrus subsp. ethiopicus

Potamogeton berchtoldii

Little aguja pondweed

Potamogeton × fauriei

Potamogeton schweinfurthii

Potamogeton crispus

Curled pondweed