Native to:
Alabama,
Alaska,
Altay,
Amur,
Austria,
Baltic States,
Belarus,
Belgium,
Borneo,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Bulgaria,
Burundi,
Buryatiya,
California,
Cameroon,
Cape Provinces,
Central European Russia,
Colombia,
Comoros,
Connecticut,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
Dominican Republic,
East European Russia,
Ethiopia,
Fiji,
Finland,
France,
Free State,
Georgia,
Germany,
Great Britain,
Guinea,
Gulf of Guinea Is.,
Guyana,
Haiti,
Hungary,
Iceland,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Kentucky,
Kenya,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
KwaZulu-Natal,
Labrador,
Lesotho,
Madagascar,
Maine,
Malawi,
Malaya,
Maluku,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mauritius,
Michigan,
Minnesota,
Mongolia,
Montana,
Mozambique,
Netherlands,
New Brunswick,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Carolina,
North Caucasus,
North European Russia,
Northern Provinces,
Northwest European Russia,
Norway,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Philippines,
Poland,
Portugal,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Rwanda,
Réunion,
Sakhalin,
Saskatchewan,
Solomon Is.,
South Carolina,
Spain,
Sudan,
Sulawesi,
Swaziland,
Sweden,
Switzerland,
Tanzania,
Tennessee,
Thailand,
Transcaucasus,
Turkey,
Uganda,
Ukraine,
Vermont,
Vietnam,
Virginia,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Yakutskiya,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe