Native to:
Alabama,
Alberta,
Arkansas,
British Columbia,
California,
Connecticut,
Delaware,
District of Columbia,
Florida,
Georgia,
Idaho,
Illinois,
Indiana,
Iowa,
Kansas,
Kentucky,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Central,
Mexico Northeast,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New York,
North Carolina,
North Dakota,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Carolina,
South Dakota,
Tennessee,
Texas,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin
Introduced into:
Albania,
Algeria,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Austria,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Brazil South,
Bulgaria,
Buryatiya,
Canary Is.,
Cape Provinces,
Central European Rus,
Chile Central,
China North-Central,
China South-Central,
China Southeast,
Colorado,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Ethiopia,
Finland,
France,
Free State,
Germany,
Great Britain,
Greece,
Hawaii,
Hungary,
India,
Inner Mongolia,
Iran,
Ireland,
Irkutsk,
Italy,
Japan,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
Kuril Is.,
KwaZulu-Natal,
Lesotho,
Madeira,
Manchuria,
Morocco,
Myanmar,
Netherlands,
New Mexico,
Newfoundland,
Northern Provinces,
Northwest European R,
Norway,
Palestine,
Poland,
Portugal,
Primorye,
Romania,
Rwanda,
Sakhalin,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tasmania,
Transcaucasus,
Tunisia,
Turkey-in-Europe,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Yugoslavia