American watermilfoil
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Saxifragales
- family: Haloragaceae
- genus: Myriophyllum
- species: Myriophyllum sibiricum
Charlemagne
Quebec
CanadaLiminka
Kymenlaakso
FinlandLeksand
DalarnaAlunda
Anneberg
Karlholmsbruk
Marieberg
Östhammar
UppsalaHolmsund
Obbola
Skelleftehamn
Ursviken
VästerbottenHärnösand
Johannedal
Stockvik
Sundsbruk
Timrå
Västernorrland
SwedenHot Springs
Hot Springs National Park
ArkansasDanbury
East Haven
Plainville
ConnecticutWhiting
IndianaTopsfield
MassachusettsBurns
Gold Beach
Port Orford
Rockaway Beach
OregonCamas
Clear Lake
Friday Harbor
Sammamish
Seattle
WashingtonCamp Lake
Milwaukee
Silver Lake
Wisconsin
United States