Native to:
Afghanistan,
Alabama,
Alaska,
Albania,
Alberta,
Aleutian Is.,
Algeria,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bolivia,
Brazil South,
Brazil Southeast,
British Columbia,
Bulgaria,
Buryatiya,
California,
Canary Is.,
Cape Provinces,
Central European Rus,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colombia,
Colorado,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
District of Columbia,
East Aegean Is.,
East European Russia,
East Himalaya,
Ecuador,
Finland,
Florida,
France,
Free State,
Georgia,
Germany,
Great Britain,
Greece,
Hungary,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kansas,
Kazakhstan,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Louisiana,
Madeira,
Manchuria,
Maryland,
Mexican Pacific Is.,
Mexico Northeast,
Mexico Northwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Morocco,
Nebraska,
Nepal,
Netherlands,
Nevada,
New Jersey,
New Mexico,
North Carolina,
North Caucasus,
North European Russi,
Northern Provinces,
Northwest European R,
Norway,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Palestine,
Paraguay,
Pennsylvania,
Peru,
Poland,
Portugal,
Primorye,
Qinghai,
Québec,
Romania,
Sakhalin,
Sardegna,
Saskatchewan,
Saudi Arabia,
Selvagens,
Sicilia,
Sinai,
South Carolina,
South Dakota,
South European Russi,
Spain,
Svalbard,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tennessee,
Texas,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uruguay,
Utah,
Uzbekistan,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia
Introduced into:
New York,
South Australia