Potamogeton

Potamogeton praelongus

Whitestem pondweed

Potamogeton × undulatus

Potamogeton trichoides

Hairlike pondweed

Potamogeton × variifolius

Potamogeton × serrulifer

Potamogeton × belorussicus

Potamogeton × argutulus

Potamogeton curtissii

Potamogeton × hagstroemii

Potamogeton × kochii

Potamogeton × nericus

Potamogeton × pusilliformis

Potamogeton confervoides

Potamogeton epihydrus

American pondweed

Potamogeton floridanus

Potamogeton illinoensis

Potamogeton natans

Floating-leaf pondweed

Potamogeton obtusifolius

Blunt-leaved pondweed

Potamogeton pusillus subsp. pusillus

Potamogeton spirillus