Native to:
Altay,
Amur,
Austria,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Rus,
China Southeast,
Czechoslovakia,
East European Russia,
Finland,
France,
Germany,
Hungary,
India,
Inner Mongolia,
Italy,
Japan,
Jawa,
Khabarovsk,
Korea,
Krym,
Manchuria,
Nansei-shoto,
Nepal,
North European Russi,
Northwest European R,
Norway,
Philippines,
Poland,
Primorye,
Romania,
Sumatera,
Sweden,
Tadzhikistan,
Taiwan,
Thailand,
Vietnam,
West Himalaya,
West Siberia,
Yugoslavia
Introduced into:
Alabama,
Alberta,
Arizona,
Azores,
California,
Chad,
Colorado,
Connecticut,
Georgia,
Haiti,
Illinois,
KwaZulu-Natal,
Louisiana,
Maine,
Mali,
Manitoba,
Maryland,
Massachusetts,
Mauritania,
Missouri,
Nebraska,
Nevada,
New Brunswick,
New Jersey,
New Mexico,
New York,
Niger,
North Carolina,
North Caucasus,
North Dakota,
Northern Provinces,
Northwest Territorie,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Québec,
Sardegna,
Saskatchewan,
Senegal,
South Carolina,
Texas,
Utah,
Virginia,
Yukon,
Zimbabwe