Data sources:
Alanen, A., Bongard, T., Einarsson, E., Hansen, H., Hedlund, L., Jansson, K., Josefsson, M., Philipp, M., Sandlund, O.T., Svart, A.E., Svart, H.E. and Weidema, I. (2004?). Introduced Species in the Nordic Countries (Denmark) under Nordic Council of Ministers (NMR), subgroup Natur-og Friluftslivsgruppen.
Checklist of wild flowering plants and ferns in Iceland. Flora of Iceland
Clement, E.J. and Foster, M.C. (1994) Alien plants of the British Isles. Botanical Society of the British Isles, London.
Ernst Hafliger, (Basle), and Josef Brun-Hool, (Lucerne) (196
CIBA-GEIGY WEED TABLES A synoptic presentation of the flora accompanying agricultural crops.
Germplasm Resources Information Network G.R.I.N. GRIN
Hanf, M. (1983). The Arable Weeds of Europe, with their seedlings and seeds. BASF Aktiengesellschaft, D-6700 Ludwigshafen. Germany
Holm, L. G., Pancho, J. V., Herberger, J. P. and Plucknett, D. L. (1979). A Geographical Atlas of World Weeds. John Wiley and Sons NewYork, USA
HortGuard and GrainGuard Initial Threat List Compilations
Introduced (Naturalised) Species to the United States [USDA, NRCS 1999. The PLANTS database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA. ] (
naturalised)
Landcare Research New Zealand (2001) Plant Names Database.
Pysek, P., Sadlo, J. and Mandak (2002) Catalogue of Alien Plants of the Czech Republic. Preslia, Praha. 74:97-186.
Sergei L. Mosyakin and Oksana G. Yavorska (2002) The Nonnative Flora of the Kiev (Kyiv) Urban Area, Ukraine: A Checklist and Brief Analysis URBAN HABITATS, VOLUME 1, NUMBER 1 : ISSN 1541-7115 Sergei L. Mosyakin and Oksana G. Yavorska M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, 2 Tereshchenkivska Street, Kyiv (Kiev), 01601 Ukraine;
flora@ln.ua
Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon This encyclopedic database on plant protection catalogues the main weeds (580) of western Europe, describes the species at two stages: mature plants and seedlings, and provides information on their taxonomy, their distribution and their ecology. Copyright (c) 2000 INRA, all rights reserved ; J.-P. Lonchamp, Nov. 2000