- Continental: Europe
- Regional: Northern Europe
- Denmark, Great Britain, Ireland, Norway, Sweden (introduced).
- Regional: Middle Europe
- Austria, Belgium (introduced), Czechoslovakia, Germany, Hungary, Netherlands (introduced), Poland, Switzerland (introduced).
- 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, Egypt, Libya, Morocco, Tunisia, Western Sahara.
- Regional: Macaronesia
- Azores, Canary Islands, Madeira.
- Regional: Northeast Tropical Africa
- Regional: Southern Africa
- Cape Provinces, Northern Provinces (introduced).
- Continental: Asia-Temperate
- Regional: Siberia
- West Siberia (introduced).
- Regional: Russian Far East
- Regional: Middle Asia
- Kazakhstan, Turkmenistan, Tadzhikistan, Uzbekistan.
- Regional: Caucasus
- North Caucasus, Transcaucasus.
- Regional: Western Asia
- Afghanistan, Cyprus, East Aegean Islands, Iran, Iraq, Lebanon-Syria, Palestine, Sinai, Turkey.
- Regional: Arabian Peninsula
- Gulf States, Kuwait, Saudi Arabia, Yemen.
- Regional: China
- China South-Central, Hainan, Inner Mongolia, Manchuria, China North-Central, Qinghai, China Southeast, Tibet, Xinjiang (introduced).
- Regional: Eastern Asia
- Korea, Taiwan (introduced).
- Continental: Asia-Tropical
- Regional: Indian Subcontinent
- India, Pakistan, West Himalaya.
- Regional: Indo-China
- Thailand, Vietnam (introduced).
- Regional: Malesia
- Borneo, Jawa, Lesser Sunda Islands, Malaya, Philippines, Sulawesi, Sumatera (introduced).
- Continental: Australasia
- Regional: Australia
- Norfolk Islands, New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia (introduced).
- Regional: New Zealand
- Chatham Islands, New Zealand North, New Zealand South (introduced).
- Continental: Northern America (introduced)
- Regional: Western Canada
- Alberta, British Columbia, Saskatchewan.
- Regional: Eastern Canada
- New Brunswick, Nova Scotia, Ontario, Québec.
- Regional: Northwestern U.S.A.
- Colorado, Oregon, Washington.
- Regional: North-Central U.S.A.
- Illinois, Oklahoma, Wisconsin.
- Regional: Northeastern U.S.A.
- Connecticut, Indiana, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Vermont, West Virginia.
- Regional: Southwestern U.S.A.
- Arizona, California, Nevada.
- Regional: South-Central U.S.A.
- Regional: Southeastern U.S.A.
- Alabama, Arkansas, Georgia, Louisiana, Maryland, Mississippi, North Carolina, Tennessee, Virginia.
- Regional: Mexico
- Continental: Southern America (introduced)
- Regional: Northern South America
- Regional: Western South America
- Bolivia, Colombia, Ecuador, Peru.
- Regional: Brazil
- Brazil West-Central, Brazil Northeast, Brazil Southeast, Brazil North, Brazil South.
- Regional: Southern South America
- Argentina Northeast, Argentina South, Argentina Northwest, Chile Central, Chile North, Chile South, Juan Fernández Islands, Paraguay, Uruguay.
- Continental: Antarctic (introduced)
- Regional: Subantarctic Islands
References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
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