Doubtfully present in:
Tanzania,
Uganda,
Zaïre
Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Canary Is.,
Central European Russia,
China South-Central,
China Southeast,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Finland,
France,
Germany,
Great Britain,
Greece,
Gulf States,
Hungary,
India,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Kenya,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
Lebanon-Syria,
Libya,
Madeira,
Magadan,
Mongolia,
Morocco,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Oman,
Pakistan,
Palestine,
Poland,
Portugal,
Primorye,
Romania,
Sakhalin,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South European Russia,
Spain,
Sri Lanka,
Sudan,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Western Sahara,
Xinjiang,
Yakutskiya,
Yemen,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Amsterdam-St.Paul Is.,
Angola,
Argentina Northeast,
Argentina South,
Arizona,
Arkansas,
Bermuda,
Brazil South,
British Columbia,
California,
Cape Provinces,
Chatham Is.,
Chile Central,
Chile South,
China North-Central,
Colombia,
Colorado,
Connecticut,
Cuba,
Delaware,
District of Columbia,
Dominican Republic,
Ecuador,
Falkland Is.,
Florida,
Free State,
Føroyar,
Georgia,
Greenland,
Haiti,
Hawaii,
Iceland,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Jamaica,
Jawa,
Kansas,
Kentucky,
Kermadec Is.,
KwaZulu-Natal,
Louisiana,
Maine,
Manchuria,
Maryland,
Massachusetts,
Mauritius,
Mexico Central,
Mexico Northeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Myanmar,
Nebraska,
Nevada,
New Brunswick,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
North Carolina,
Northern Provinces,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Rodrigues,
Rwanda,
Réunion,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
St.Helena,
Svalbard,
Tasmania,
Tennessee,
Texas,
Uruguay,
Venezuela,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Virginia,
Western Australia,
Wisconsin,
Yukon,
Zimbabwe