Native to:
Afghanistan,
Alaska,
Alberta,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Bolivia,
British Columbia,
Buryatiya,
California,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
Chita,
Colombia,
Colorado,
Connecticut,
Costa Rica,
East European Russia,
East Himalaya,
Ecuador,
Greenland,
Guatemala,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Irkutsk,
Japan,
Kamchatka,
Kansas,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southwest,
Michigan,
Minnesota,
Missouri,
Mongolia,
Montana,
Nebraska,
Nepal,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Dakota,
Northwest Territories,
Nova Scotia,
Nunavut,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Peru,
Primorye,
Prince Edward I.,
Qinghai,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Dakota,
Tadzhikistan,
Texas,
Tibet,
Tuva,
Uruguay,
Utah,
Uzbekistan,
Washington,
West Himalaya,
West Siberia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yukon
Introduced into:
Finland,
Norway,
Sweden