Native to:
Alabama,
Alaska,
Alberta,
Altay,
Amur,
Andaman Is.,
Arizona,
Arkansas,
Assam,
Austria,
Baltic States,
Bangladesh,
Belarus,
Belize,
Bismarck Archipelago,
Borneo,
British Columbia,
Bulgaria,
Buryatiya,
California,
Cambodia,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Connecticut,
Costa Rica,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
Dominican Republic,
East European Russia,
East Himalaya,
El Salvador,
Fiji,
Finland,
Florida,
France,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Hainan,
Haiti,
Honduras,
Hungary,
Idaho,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Irkutsk,
Italy,
Japan,
Jawa,
Kamchatka,
Kazakhstan,
Kazan-retto,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
Kuril Is.,
Labrador,
Laos,
Lesser Sunda Is.,
Madagascar,
Madeira,
Maine,
Malaya,
Maluku,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Missouri,
Mongolia,
Montana,
Mozambique,
Myanmar,
Nansei-shoto,
Nebraska,
Nepal,
Netherlands,
New Brunswick,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
Nicaragua,
Nicobar Is.,
North Carolina,
North Caucasus,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Nunavut,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Panamá,
Pennsylvania,
Philippines,
Poland,
Primorye,
Prince Edward I.,
Qinghai,
Queensland,
Québec,
Rhode I.,
Romania,
Réunion,
Sakhalin,
Samoa,
Santa Cruz Is.,
Saskatchewan,
Seychelles,
Society Is.,
Solomon Is.,
South Carolina,
South Dakota,
South European Russi,
Spain,
Sri Lanka,
Sulawesi,
Sumatera,
Sweden,
Switzerland,
Taiwan,
Tennessee,
Thailand,
Tibet,
Tonga,
Transcaucasus,
Turkey,
Tuva,
Ukraine,
Utah,
Vanuatu,
Vermont,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon
Introduced into:
Belgium