Native to:
Afghanistan,
Alaska,
Alberta,
Aleutian Is.,
Altay,
Amur,
Antipodean Is.,
Argentina Northeast,
Argentina South,
Arizona,
Austria,
Bolivia,
Borneo,
British Columbia,
Buryatiya,
California,
Chatham Is.,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
Chita,
Colombia,
Colorado,
Connecticut,
Dominican Republic,
East European Russia,
East Himalaya,
Ecuador,
Falkland Is.,
Finland,
France,
Germany,
Greenland,
Guatemala,
Haiti,
Iceland,
Idaho,
Inner Mongolia,
Iran,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mongolia,
Montana,
Nepal,
Nevada,
New Brunswick,
New Guinea,
New Hampshire,
New Mexico,
New South Wales,
New York,
New Zealand South,
Newfoundland,
North Carolina,
North Caucasus,
North European Russi,
Northwest Territorie,
Norway,
Nova Scotia,
Nunavut,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Peru,
Primorye,
Qinghai,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Dakota,
Spain,
Svalbard,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tennessee,
Texas,
Tibet,
Transcaucasus,
Tuva,
Utah,
Uzbekistan,
Vermont,
Victoria,
Virginia,
Washington,
West Himalaya,
West Siberia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yukon
Introduced into:
Great Britain,
Kerguelen