Native to:
Alabama,
Angola,
Arkansas,
Assam,
Bangladesh,
Botswana,
Cambodia,
Cape Provinces,
Connecticut,
Delaware,
District of Columbia,
Ethiopia,
Florida,
Free State,
Georgia,
Illinois,
India,
Indiana,
Iowa,
Kansas,
Kentucky,
Kenya,
KwaZulu-Natal,
Lesotho,
Louisiana,
Madagascar,
Maine,
Malawi,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mozambique,
Myanmar,
Namibia,
Nebraska,
Nepal,
New Brunswick,
New Hampshire,
New Jersey,
New South Wales,
New York,
Nigeria,
North Carolina,
North Dakota,
Northern Provinces,
Northern Territory,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Pakistan,
Pennsylvania,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
Sudan,
Swaziland,
Tanzania,
Tennessee,
Texas,
Thailand,
Vermont,
Victoria,
Vietnam,
Virginia,
West Himalaya,
West Virginia,
Western Australia,
Wisconsin,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Alberta,
California,
Colorado,
Czechoslovakia,
Great Britain,
Idaho,
Montana,
Oregon,
Washington