Native to:
Alabama,
Alaska,
Albania,
Alberta,
Amur,
Arkansas,
Austria,
Belarus,
British Columbia,
California,
Chita,
Czechoslovakia,
East Himalaya,
France,
Georgia,
Germany,
Greece,
Hungary,
Illinois,
Indiana,
Iowa,
Italy,
Kamchatka,
Kentucky,
Khabarovsk,
Magadan,
Maryland,
Mississippi,
Missouri,
Mongolia,
Nepal,
North Carolina,
North Caucasus,
Ohio,
Oklahoma,
Oregon,
Pennsylvania,
Poland,
Primorye,
Romania,
Sakhalin,
South Carolina,
Spain,
Switzerland,
Tennessee,
Transcaucasus,
Turkey,
Ukraine,
Virginia,
Washington,
West Himalaya,
West Virginia,
Yakutskiya,
Yugoslavia,
Yukon
Introduced into:
Baltic States,
Central European Rus,
Delaware,
Finland,
Great Britain,
Maine,
Michigan,
New Jersey,
New South Wales,
New York,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Ontario,
Québec,
Sweden,
Wisconsin