- Continental: Europe
- Regional: Northern Europe
- Denmark, Finland, Great Britain, Ireland, Norway, Sweden.
- Regional: Middle Europe
- Austria, Belgium, Czechoslovakia, Germany, Hungary, Netherlands, Poland, Switzerland.
- Regional: Southwestern Europe
- Baleares, Corse, France, Portugal, Sardegna, Spain.
- Regional: Southeastern Europe
- Albania, Bulgaria, Greece, Italy, Kriti, Romania, Sicilia, Turkey-in-Europe, Yugoslavia.
- Regional: Eastern Europe
- Belarus, Baltic States, Krym, Central European Russia, East European Russia, North European Russia, South European Russia, Northwest European Russia, Ukraine.
- Continental: Africa
- Regional: Northern Africa
- Algeria, Libya, Morocco, Tunisia.
- Regional: Macaronesia
- Azores, Canary Islands, Cape Verde, Madeira.
- Regional: West-Central Tropical Africa
- Regional: Northeast Tropical Africa
- Djibouti, Eritrea, Ethiopia, Somalia, Sudan.
- Regional: East Tropical Africa
- Regional: Southern Africa (introduced)
- Continental: Asia-Temperate
- Regional: Siberia
- Altay, Krasnoyarsk, Tuva, West Siberia.
- Regional: Middle Asia
- Kazakhstan, Kirgizstan, Tadzhikistan, Uzbekistan.
- Regional: Caucasus
- North Caucasus, Transcaucasus.
- Regional: Western Asia
- Afghanistan, Cyprus, East Aegean Islands, Iran, Lebanon-Syria, Palestine, Turkey.
- Regional: Arabian Peninsula
- Regional: China
- China South-Central, China North-Central, China Southeast, Tibet, Xinjiang.
- Regional: Mongolia
- Regional: Eastern Asia
- Continental: Asia-Tropical
- Regional: Indian Subcontinent
- Nepal, Pakistan, West Himalaya.
- Continental: Australasia (introduced)
- Regional: Australia
- New South Wales, Tasmania.
- Regional: New Zealand
- New Zealand North, New Zealand South.
- Continental: Northern America (introduced)
- Regional: Western Canada
- Regional: Eastern Canada
- Newfoundland, Ontario, Québec.
- Regional: Northwestern U.S.A.
- Idaho, Montana, Oregon, Washington.
- Regional: North-Central U.S.A.
- Illinois, Iowa, Missouri, Oklahoma, Wisconsin.
- Regional: Northeastern U.S.A.
- Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia.
- Regional: Southwestern U.S.A.
- Regional: South-Central U.S.A.
- Regional: Southeastern U.S.A.
- Alabama, Arkansas, Delaware, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, District of Columbia.
- Continental: Southern America (introduced)
- Regional: Southern South America
- Argentina South, Chile Central, Chile South, Uruguay.
- Continental: Antarctic (introduced)
- Regional: Subantarctic Islands
References:Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition |