Native to:
Afghanistan,
Alabama,
Albania,
Algeria,
Amur,
Andaman Is.,
Arkansas,
Assam,
Austria,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Borneo,
British Columbia,
Bulgaria,
Buryatiya,
California,
Cambodia,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Connecticut,
Corse,
Costa Rica,
Cyprus,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
East European Russia,
East Himalaya,
El Salvador,
Florida,
France,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Hainan,
Honduras,
Hungary,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Ireland,
Irkutsk,
Italy,
Japan,
Jawa,
Kansas,
Kazakhstan,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krym,
Kuril Is.,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Louisiana,
Madagascar,
Maine,
Malaya,
Maluku,
Manchuria,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Morocco,
Myanmar,
Nansei-shoto,
Nebraska,
Nepal,
Netherlands,
New Guinea,
New Hampshire,
New Jersey,
New York,
Nicaragua,
Nicobar Is.,
North Carolina,
North Caucasus,
North Dakota,
North European Russi,
Northwest European R,
Norway,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Philippines,
Poland,
Portugal,
Primorye,
Qinghai,
Queensland,
Rhode I.,
Romania,
Sakhalin,
Sardegna,
Sicilia,
South Carolina,
South Dakota,
South European Russi,
Spain,
Sri Lanka,
Sulawesi,
Sumatera,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tennessee,
Texas,
Thailand,
Tibet,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Uzbekistan,
Vietnam,
Virginia,
West Himalaya,
West Virginia,
Wisconsin,
Xinjiang,
Yugoslavia
Introduced into:
New Brunswick,
New Zealand North,
New Zealand South,
Prince Edward I.,
Québec,
Tasmania,
Utah,
Vermont