- 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, South European Russia, Northwest European Russia, Ukraine.
- Continental: Africa
- Regional: Northern Africa
- Algeria, Egypt, Libya, Morocco, Tunisia.
- Regional: Macaronesia
- Azores, Canary Islands, Cape Verde (introduced).
- Regional: West Tropical Africa
- Nigeria, Senegal (introduced).
- Regional: West-Central Tropical Africa
- Burundi, Cameroon, Rwanda, Zaire (introduced).
- Regional: Northeast Tropical Africa
- Chad, Ethiopia, Socotra (introduced).
- Regional: East Tropical Africa
- Kenya, Tanzania, Uganda (introduced).
- Regional: South Tropical Africa
- Angola, Mozambique, Zambia, Zimbabwe (introduced).
- Regional: Southern Africa
- Botswana, Cape Provinces, Namibia, KwaZulu-Natal, Northern Provinces (introduced).
- Regional: Western Indian Ocean
- Mauritius, Madagascar (introduced).
- Continental: Asia-Temperate
- Regional: Middle Asia
- Kazakhstan, Kirgizstan, Turkmenistan, Uzbekistan.
- Regional: Caucasus
- North Caucasus, Transcaucasus.
- Regional: Western Asia
- Cyprus, East Aegean Islands, Iran, Iraq, Lebanon-Syria, Palestine, Turkey.
- Regional: Arabian Peninsula
- Regional: China
- China South-Central, Hainan, China Southeast, Tibet.
- Regional: Eastern Asia
- Japan, Korea, Nansei-shoto, Ogasawara-shoto, Taiwan.
- Continental: Asia-Tropical
- Regional: Indian Subcontinent
- Maldives (introduced), Nepal, West Himalaya.
- Regional: Malesia
- Lesser Sunda Islands, Maluku, Sumatera (introduced).
- Regional: Papuasia
- New Guinea, Solomon Islands (introduced).
- Continental: Australasia
- Regional: Australia
- New South Wales, Queensland, South Australia, Victoria, Western Australia.
- Continental: Pacific
- Regional: Southwestern Pacific
- Regional: South-Central Pacific
- Cook Islands, Society Islands, Tuamotu, Tubuai Islands (introduced).
- Regional: North-Central Pacific
- Continental: Northern America
- Regional: Western Canada
- Regional: Eastern Canada
- New Brunswick, Newfoundland, Nova Scotia, Ontario, Québec.
- Regional: North-Central U.S.A.
- Illinois, Minnesota, Wisconsin.
- Regional: Northeastern U.S.A.
- Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont.
- Regional: Southwestern U.S.A.
- Arizona, California, Nevada, Utah.
- Regional: South-Central U.S.A.
- Regional: Southeastern U.S.A.
- Alabama, Arkansas, Delaware, Florida, Georgia, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia.
- Regional: Mexico
- Mexico Northeast, Mexico Gulf, Mexico Northwest, Mexico Southwest, Mexico Southeast.
- Continental: Southern America
- Regional: Central America
- Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama.
- Regional: Caribbean
- Bahamas, Bermuda, Cayman Islands, Cuba, Dominican Republic, Haiti, Jamaica, Leeward Islands, Puerto Rico, Turks-Caicos Islands, Windward Islands.
- Regional: Northern South America
- Guyana, Suriname (doubtfully present), Venezuela.
- Regional: Western South America
- Regional: Brazil
- Brazil Northeast, Brazil Southeast, Brazil South.
- Regional: Southern South America
- Argentina Northeast, Argentina Northwest, Paraguay, Uruguay.
References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
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