Native to:
Alabama,
Arizona,
Colorado,
Georgia,
Illinois,
Kentucky,
Maryland,
Massachusetts,
Mexico Northeast,
Mexico Northwest,
New Jersey,
New Mexico,
New York,
North Carolina,
Ohio,
Pennsylvania,
South Carolina,
Tennessee,
Texas,
Utah,
Vermont,
Virginia,
Wyoming
Introduced into:
Albania,
Algeria,
Argentina Northeast,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
Bulgaria,
California,
Canary Is.,
Cape Provinces,
Central European Rus,
Chile Central,
China North-Central,
China South-Central,
China Southeast,
Corse,
Czechoslovakia,
East Aegean Is.,
East European Russia,
Easter Is.,
France,
Free State,
Germany,
Great Britain,
Greece,
Hungary,
Idaho,
India,
Inner Mongolia,
Iraq,
Italy,
Japan,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Kriti,
Krym,
Kuril Is.,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Madeira,
Manchuria,
Minnesota,
Morocco,
Netherlands,
Nevada,
New Zealand North,
New Zealand South,
North Caucasus,
Northern Provinces,
Oregon,
Pakistan,
Palestine,
Poland,
Primorye,
Qinghai,
Romania,
Réunion,
Sakhalin,
Sardegna,
Sicilia,
South European Russi,
Spain,
Switzerland,
Tadzhikistan,
Taiwan,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Uzbekistan,
Washington,
West Himalaya,
Wisconsin,
Xinjiang,
Yugoslavia