grass-wrack pondweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Alismatales
- family: Potamogetonaceae
- genus: Potamogeton
- species: Potamogeton compressus
Hoogezand
GroningenNieuw-Loosdrecht
North Holland
NetherlandsGränna
JönköpingKristianstad
Norra Åsum
Oxie
SkåneSala
VästmanlandGrebbestad
Ulricehamn
Västra Götaland
SwedenDarlington
Pevensey
England
United KingdomLitchfield
ConnecticutWhiting
IndianaDunes City
Oregon
United States