coast, mainly of northern hemisphere - Europe
- Northern Europe
- Denmark, Great Britain, Finland, Ireland, Norway, Sweden
- Middle Europe
- Austria, Belgium, Czechoslovakia, Germany, Hungary, Netherlands, Poland
- Southwestern Europe
- Baleares, Corse, France, Portugal, Sardegna, Spain
- Southeastern Europe
- Albania, Bulgaria, Greece, Italy, Romania, Sicilia, Turkey-in-Europe, Yugoslavia
- Eastern Europe
- Baltic States, Belarus, Central European Russia, East European Russia, Krym, Northwest European Russia, South European Russia, Ukraine
- Africa
- Northern Africa
- Algeria, Egypt, Libya, Morocco, Tunisia, Western Sahara
- Macaronesia
- West Tropical Africa
- Asia-Temperate
- Siberia
- Arabian Peninsula
- Gulf States, Saudi Arabia
- Eastern Asia
- Asia-Tropical
- Northern America
- Western Canada
- Eastern Canada
- New Brunswick, Newfoundland, Nova Scotia, Prince Edward I., Québec
- Northeastern U.S.A.
- Connecticut, Maine, Masachusettes, New Hampshire, New Jersey, New York, Pennsylvania, Rhode I.
- Southeastern U.S.A.
References:Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition |