Western Australia Department of Agriculture (AgWest) Hawaiian Ecosystems at Risk project (HEAR) Global Compendium of Weeds (GCW) Global Compendium of Weeds
Elodea canadensis (Hydrocharitaceae)

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Presented here is summary information about the species Elodea canadensis from the Global Compendium of Weeds, and citations of references to this species as a weed. Definitions of terms are available in the GCW introduction View info about Adobe Acrobat PDF format. For further information--or to report corrections or concerns--contact webmaster@hear.org.

Synonyms/other Latin names: [ see GRIN ]

Status(es) (compiled for below "Data sources"): agricultural weed, cultivation escape, environmental weed, garden thug, naturalised, noxious weed, sleeper weed, weed [for definitions, see the GCW introduction View info about Adobe Acrobat PDF format.]

Origin (native to where): [no info]


Data sources:

CHECKLIST OF THE VASCULAR PLANTS OF FINLAND, based on Kurtto, A. & Lahti, T. 1987: Suomen putkilokasvien luettelo (Checklist of the vascular plants of Finland). - Pamphl. Bot. Mus. Univ. Helsinki 11: I.-VI + 1-163. The list includes all the vascular plants found in Finland up to 1987, excluding those only in cultivation (i.e. taxa found during the past few years - mainly casual plants or plants escaping from cultivation are missing, and erroneous records of the 1987 list have not been corrected)

Lesley Henderson & Carina J. Cilliers (2002) Invasive Aquatic Plants. A guide to the identification of the most important and potentially dangerous invasive aquatic and wetland plants in South Africa. Plant Protection Research Institute Handbook No. 16. Agricultural Research Council, South Africa. SPECIES NOT WANTED IN SOUTHERN AFRICA. The list is based on prohibited and noxious plant lists for South Africa and other countries which share many invasive species with southern Africa, namely Australia, New Zealand, United States of America (federal list), Florida (State list) and California (State list) see references after the list. The list includes species not yet in southern Africa and those which may be present but are scarce and their cultivation should be discouraged. Algae are excluded.

20% of the species are Asteraceae, 6% are Poaceae, -

A list of weed species from various New Zealand references to "weeds" compiled by P.A.Williams, Landcare Research, New Zealand.

ANEXO 1 - Espécies introduzidas em Portugal continental - (I) Invasoras. Legislaçao Nacional Decreto-Lei no. 565/99 de 21-12-1999 (Versao 1 Originária) Decreto-Lei565/9921-12-1999 Ministério do Ambiente Regula a introduçao na natureza de espécies nao indígenas da flora e fauna. Espécies nao indígenas da flora e da fauna 21-12-1999295 fauna, flora, animais domésticos, espécies de fauna ameaçadas, protecçao dos animais, vegetaçao Direito do Ambiente 1999-12-21 S

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.

Alien species recorded in Poland. Alien Species Polich Database.Wojciech Solarz, Institute of Nature Conservation, Polish Academy of Sciences, Kraków Poland. (Database was prepared for the Polish Ministry of Environment)

Aliens List, Nominated Worst Invasive Weeds after a request by Sarah Lowe from ISSG New Zealand to the Aliens email list group.

Andersen, R.N. (1968). Germination and Establishment of Weeds for Experimental Purposes. Weed Science Society of America Handbook. WSSA, Illinois.

Anon, (----). Species introduced in Continental Portugal [Espécies introduzidas em Portugal Continenta]. ICN - Instituto da Conservacao da Natureza.

Auld, B.A. and Medd, R.W. (1992) WEEDS, An illustrated botanical guide to the weeds of Australia. Inkata Press, Melbourne.

Balogh L, Dancza István, Királi G (2005) Actual list of neophytes in Hungary and their classification according to their success. In: Mihály B, Botta-Dukát Z (eds.), Biological invasions in Hungary, invasive plants, 61-92. Természet BUVAR Alapítvány Kiadó, Budapest.

BlackList, Grey List and Watch List established by the working group E. Weber et al. 22.02.2002 In 2001, a working group CPS/SKEW was initiated (directed by Dr. E. Weber, ETHZ), which has established lists of invasive neophytes for Switzerland.

Botond, M. & Zoltán, B.D.(eds.) (2004) Biological Invasions in Hungary. Invasive Plants. TermészetBUVAR Alapítvány Kiadó.

CBD Thematic Report on Alien Species - Estonia (English version) by Liina Eek, Senior officer. Ministry of the Environment. Toompuiestee 24, Tallinn, 15172 Estonia. (email: leek@ut.ee) Weed comments according to Toomas Kukk (Institute of Zoology and Botany).

Carr, G.W., Yugovic, J.V. and Robinson, K.E. (1992). Environmental Weed Invasions in Victoria. Department of Conservation and Environment. Melbourne

Cavers, P.B. (Ed.) (2000). The Biology of Canadian Weeds IV. Contributions 84-102. Agricultural Insitute of Canada.

Check-list of the Flowering Plants and Ferns of Cornwall and the Isles of Scilly - 1994 C.N. French and R.J. Murphy. University of Exeter

Chris Buddenhagen and Melanie Newfield (pers comm. 2001) A list of potential and actual environmental weeds for New Zealand. Department of Conservation.

Clement, E.J. and Foster, M.C. (1994) Alien plants of the British Isles. Botanical Society of the British Isles, London.

Colin C. Ogle (last revision May 2003). Adventive plants collected in the Wanganui Conservancy of the New Zealand Department of Conservation, 1988-present. (Unpublished working list).  Author's address: 22 Forres St, Wanganui, New Zealand.  Email: robcol.ogle@xtra.co.nz

Cronk, Q.C.B and Fuller, J.L. (1995). Plant Invaders, The threat to natural ecosystems. Chapman and Hall United Kingdom

Garden Thugs proposed to be withdrawn from nurseries in Western Australia. List complied by Sandy Lloyd in consultation with EWAN, CALM and other staff of Dept.



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This page was created on 13 September 2007 by PT, and was last updated on 04 October 2007 by PT based on data from Rod Randall's Global Compendium of Weeds database dated 24 January 2007. Valid HTML 4.01!