| 1 | Native | Africa | Northern Africa | Algeria | | | Quézel, P. & S. Santa. 1962-1963. Nouvelle flore de l'Algerie. |
| 1 | Native | Africa | Northern Africa | Morocco | | | Jahandiez, E. & R. Maire. 1931-1941. Catalogue des plantes du Maroc. |
| 1 | Native | Africa | Northern Africa | Tunisia | | | Pottier-Alapetite, G. 1979-1981. Flore de la Tunisie: Angiospermes-Dicotyledones. |
| 1 | Native | Asia-Temperate | Western Asia | Turkey | | | Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands. |
| 1 | Native | Europe | Southeastern Europe | Albania | | | Tutin, T. G. et al., eds. 1993. Flora europaea, ed. 2. |
| 1 | Native | Europe | Southeastern Europe | Bosnia and Herzegovina | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | Bulgaria | | | Tutin, T. G. et al., eds. 1993. Flora europaea, ed. 2. |
| 1 | Native | Europe | Southeastern Europe | Croatia | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | Greece | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | Italy | | incl. Sardinia, Sicily | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | Montenegro | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | North Macedonia | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | Romania | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | Serbia | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southeastern Europe | Slovenia | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southwestern Europe | France | | incl. Corsica | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southwestern Europe | Portugal | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 1 | Native | Europe | Southwestern Europe | Spain | | incl. Baleares | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 2 | Cultivated | | | | | also cult. | Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening |
| 4 | Naturalized | Asia-Temperate | Western Asia | Cyprus | | | Meikle, R. D. 1977-1985. Flora of Cyprus. |
| 4 | Naturalized | Asia-Temperate | Western Asia | Israel | | | Zohary, M. & N. Feinbrun-Dothan. 1966-. Flora palaestina. |
| 4 | Naturalized | Asia-Temperate | Western Asia | Lebanon | | | Mouterde, P. 1966-. Nouvelle flore du Liban et de la Syrie. |
| 4 | Naturalized | Asia-Temperate | Western Asia | Syria | | | Mouterde, P. 1966-. Nouvelle flore du Liban et de la Syrie. |
| 4 | Naturalized | Australasia | Australia | Australia | Australian Capital Territory | | George, A. S., ed. 1980-. Flora of Australia. |
| 4 | Naturalized | Australasia | Australia | Australia | New South Wales | | George, A. S., ed. 1980-. Flora of Australia. |
| 4 | Naturalized | Europe | Middle Europe | Switzerland | | | Tutin, T. G. et al., eds. 1993. Flora europaea, ed. 2. |
| 4 | Naturalized | Europe | Southwestern Europe | France | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Northern America | Southwestern U.S.A. | United States | California | | Whittemore, A. T. 2008. Exotic species of Celtis (Cannabaceae) in the flora of North America. J. Bot. Res. Inst. Texas 2:627-632. |