Native to:
Alabama,
Alaska,
Albania,
Alberta,
Algeria,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
Bolivia,
Brazil Northeast,
Brazil South,
Brazil Southeast,
British Columbia,
Bulgaria,
California,
Cape Verde,
Central European Rus,
Chile Central,
Chile South,
Colombia,
Colorado,
Connecticut,
Corse,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
Dominican Republic,
Ecuador,
Finland,
Florida,
France,
Free State,
Føroyar,
Georgia,
Germany,
Great Britain,
Greece,
Greenland,
Guatemala,
Haiti,
Hungary,
Iceland,
Idaho,
Illinois,
Indiana,
Iowa,
Ireland,
Italy,
Jamaica,
Juan Fernández Is.,
Kamchatka,
Kansas,
Kentucky,
Khabarovsk,
Krym,
Labrador,
Louisiana,
Madeira,
Magadan,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Southeast,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Morocco,
Nebraska,
Netherlands,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Carolina,
North Caucasus,
North Dakota,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Peru,
Poland,
Portugal,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Sardegna,
Saskatchewan,
South Carolina,
South Dakota,
South European Russi,
Spain,
Sweden,
Switzerland,
Tennessee,
Texas,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Ukraine,
Uruguay,
Utah,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming,
Yugoslavia,
Yukon
Introduced into:
Chatham Is.,
Costa Rica,
Japan,
New Zealand North,
New Zealand South,
Réunion,
St.Helena,
Tasmania,
Victoria