Introduced into:
Afghanistan,
Alabama,
Albania,
Angola,
Argentina Northeast,
Arkansas,
Austria,
Azores,
Belgium,
Brazil South,
Brazil Southeast,
British Columbia,
Bulgaria,
California,
Canary Is.,
Cape Provinces,
Central European Russia,
Chile Central,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Connecticut,
Corse,
Czechoslovakia,
Denmark,
Ecuador,
France,
Free State,
Germany,
Great Britain,
Greece,
Hungary,
Illinois,
India,
Indiana,
Inner Mongolia,
Ireland,
Italy,
Japan,
Korea,
KwaZulu-Natal,
Lesotho,
Madeira,
Maine,
Manchuria,
Manitoba,
Massachusetts,
Michigan,
Montana,
Nepal,
Netherlands,
New Hampshire,
New Jersey,
New South Wales,
New York,
North Carolina,
Northern Provinces,
Norway,
Nova Scotia,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Poland,
Portugal,
Queensland,
Québec,
Rhode I.,
Romania,
Réunion,
Sardegna,
Sicilia,
South Australia,
South Carolina,
Spain,
Swaziland,
Sweden,
Switzerland,
Taiwan,
Tasmania,
Tennessee,
Tristan da Cunha,
Turkey,
Uruguay,
Vermont,
Victoria,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Wisconsin,
Yugoslavia