Native to:
Alabama,
Arizona,
California,
Florida,
Georgia,
Kentucky,
Louisiana,
Mexico Northeast,
Mississippi,
Nevada,
New Mexico,
North Carolina,
South Carolina,
Texas,
Utah,
Virginia
Introduced into:
Afghanistan,
Alaska,
Albania,
Alberta,
Algeria,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arkansas,
Austria,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Cambodia,
Canary Is.,
Central European Rus,
Chile Central,
China North-Central,
Colorado,
Connecticut,
Corse,
Cyprus,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
East Aegean Is.,
East European Russia,
Egypt,
Finland,
France,
Germany,
Great Britain,
Greece,
Gulf States,
Hungary,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Ireland,
Italy,
Japan,
Kansas,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Labrador,
Lebanon-Syria,
Libya,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mexico Northwest,
Michigan,
Minnesota,
Missouri,
Mongolia,
Montana,
Morocco,
Nebraska,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Caucasus,
North Dakota,
Northwest European R,
Norway,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Palestine,
Pennsylvania,
Poland,
Portugal,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Sardegna,
Saskatchewan,
Saudi Arabia,
Sicilia,
South Dakota,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Tasmania,
Tennessee,
Transcaucasus,
Tunisia,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Uruguay,
Uzbekistan,
Vermont,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Xinjiang,
Yugoslavia