Distribution
Afghanistan, Albania, Austria, Belarus, Belgium, Bulgaria, Denmark, Finland, France, Georgia, Germany, Greece, Greenland, Guatemala, Hungary, Iceland, Iran, Iraq, Ireland, Italy, Kazakhstan, Mongolia, Netherlands, Norway, Pakistan, Poland, Portugal, Romania, Slovenia, Spain, Sweden, Switzerland, Turkey, Turkmenistan, Ukraine, Uzbekistan

Native to: Afghanistan, Alabama, Alaska, Albania, Alberta, Altay, Amur, Arizona, Arkansas, Austria, Baltic States, Belarus, Belgium, British Columbia, Bulgaria, Buryatiya, California, Central European Rus, Chita, Colorado, Connecticut, Czechoslovakia, Delaware, Denmark, District of Columbia, East European Russia, East Himalaya, Finland, Florida, France, Føroyar, Georgia, Germany, Great Britain, Greece, Greenland, Guatemala, Hungary, Iceland, Idaho, Illinois, Indiana, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Kamchatka, Kansas, Kazakhstan, Kentucky, Khabarovsk, Kirgizstan, Krasnoyarsk, Kuril Is., Labrador, Lebanon-Syria, Louisiana, Magadan, Maine, Manitoba, Maryland, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Nebraska, Netherlands, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Carolina, North Caucasus, North Dakota, North European Russi, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Pennsylvania, Poland, Portugal, Primorye, Prince Edward I., Québec, Rhode I., Romania, Sakhalin, Sardegna, Saskatchewan, Sicilia, South Carolina, South Dakota, South European Russi, Spain, Sweden, Switzerland, Tadzhikistan, Tennessee, Texas, Transcaucasus, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, Utah, Uzbekistan, Vermont, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Yakutskiya, Yugoslavia, Yukon.
Introduced into: Antipodean Is., Argentina Northeast, Argentina Northwest, Argentina South, Azores, Baleares, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Cameroon, Cape Provinces, Chatham Is., Chile Central, Chile North, Chile South, Colombia, Corse, Costa Rica, Cuba, Cyprus, Dominican Republic, Ecuador, Falkland Is., Free State, Haiti, Hawaii, Honduras, India, Inner Mongolia, Jamaica, Japan, Jawa, Korea, KwaZulu-Natal, Lesotho, Madeira, Malaya, Namibia, New South Wales, New Zealand North, New Zealand South, Nicaragua, Northern Provinces, Northern Territory, Paraguay, Peru, Philippines, Queensland, South Australia, South Georgia, Sulawesi, Sumatera, Taiwan, Tasmania, Uruguay, Victoria, Vietnam, Western Australia, Xinjiang, Zimbabwe.