Regions (WGSRPD)
Australia, Caucasus, China, East Tropical Africa, Eastern Asia, Eastern Canada, Eastern Europe, Indian Subcontinent, Mexico, Middle Asia, Middle Europe, Mongolia, New Zealand, North-Central U.S.A., Northeast Tropical Africa, Northeastern U.S.A., Northern Europe, Northwestern U.S.A., Russian Far East, Siberia, South-Central U.S.A., Southeastern Europe, Southeastern U.S.A., Southwestern Europe, Southwestern U.S.A., Subarctic America, West-Central Tropical Africa, Western Asia, Western Canada
Botanical Countries (WGSRPD L3)
Afghanistan, Alaska, Albania, Alberta, Aleutian Is., Altay, Amur, Antipodean Is., Arizona, Austria, Baltic States, Belarus, Belgium, British Columbia, Bulgaria, Buryatiya, California, Cameroon, Central European Russia, Chatham Is., China North-Central, China South-Central, Chita, Colorado, Congo, Connecticut, Czechoslovakia, Denmark, East European Russia, East Himalaya, Ethiopia, Finland, France, Føroyar, Germany, Great Britain, Greece, Greenland, Gulf of Guinea Is., Hungary, Iceland, Idaho, Illinois, Indiana, Inner Mongolia, Iran, Ireland, Irkutsk, Italy, Japan, Kamchatka, Kazakhstan, Kentucky, Kenya, Khabarovsk, Kirgizistan, Korea, Krasnoyarsk, Krym, Kuril Is., Labrador, Magadan, Maine, Manchuria, Manitoba, Maryland, Massachusetts, Mexico Northeast, Michigan, Minnesota, Mongolia, Montana, Nepal, Netherlands, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New South Wales, New York, New Zealand North, New Zealand South, Newfoundland, North Carolina, North Caucasus, North Dakota, North European Russia, Northwest European Russia, Northwest Territories, Norway, Nova Scotia, Nunavut, Ohio, Ontario, Oregon, Pakistan, Pennsylvania, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Rwanda, Sakhalin, Saskatchewan, Sicilia, South Dakota, South European Russia, Spain, Svalbard, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tasmania, Tibet, Transcaucasus, Turkey, Turkey-in-Europe, Tuva, Uganda, Ukraine, Utah, Uzbekistan, Vermont, Victoria, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yugoslavia, Yukon, Zaïre
An “Introduced” distribution indicates that the plant is recorded outside its native range in that region as a result of deliberate or accidental human introduction. Introduced records may include casual, naturalized or invasive populations, but do not include plants that are only cultivated or planted without self-sustaining populations.