Western Australia Department of Agriculture (AgWest) Hawaiian Ecosystems at Risk project (HEAR) Global Compendium of Weeds (GCW) Global Compendium of Weeds
Conyza bonariensis (Asteraceae)


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Presented here is summary information about the species Conyza bonariensis 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, casual alien, environmental weed, garden thug, naturalised, weed [for definitions, see the GCW introduction View info about Adobe Acrobat PDF format.]

Origin (native to where): [no info]



Data sources:

Actual and Prospective Weeds. Pacific Islands Ecosystems at Risk Project; http://www.hear.org/pier/ (weed) [ online info ]

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) (casual alien)

EXOTIC WEEDS AND ALIENS. An html page found on the UNDP sponsored Sustainable Development Networking Programme Website - India now being maintained by the ENVIS Secretariat, Ministry of Environment and Forests, Government of India, New Delhi. (naturalised, weed)

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

2006/115 Non-indigenous flora of the Azores Archipelago (PT) EPPO Reporting Service, NO. 5, PARIS, 2006-05-01 (naturalised)

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 (naturalised)

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. (casual alien)

Albrecht, D. (1998) Weeds of Alice Springs. Northern Territory Herbarium, Unpublished Doc. [Dave Albrecht (weed)

Alien Species. On March 10, the Japanese Cabinet submitted the bill dealing with invasive alien species to the Diet. The Diet passed the bill without amendments and the Invasive Alien Species Act was promulgated as of June 2, 2004. List of alien species recognized to be established in Japan or found in the Japanese wild (as of October 27, 2004) [PDF] (naturalised)

Alien plants of Fuerteventura, Canary Islands. Plantas extranjeras de Fuerteventura, Islas Canarias - korrigierte Fassung vom 23.01.2002 - Prof. Dr. Dietmar Brandes, Dipl.-Biol. Katrin Fritzsch. Arbeitsgruppe für Vegetationsökologie und experimentelle Pflanzensoziologie Botanisches Institut und Botanischer Garten der TU Braunschweig D-38023 Braunschweig. Abstract: The nowadays flora of Fuerteventura contains some 780 species. At least 119 species are aliens, some 150 further species of mediterranean and/or North African origin are probably introduced too. The estimated percentage of aliens therefore reaches 35 %. (naturalised)

Anon (1992). The Grower's Weed Identification Handbook by Family and by Aphabetical Listing. Publication 4030. - Division of Agriculture and Natural Resources, University of California. (agricultural weed)

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

Argentina AGRO Management Malezas Incluidas. Argentinian Software Development Company. (weed)

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

Barker, W.R., R.M.Barker, J.P. Jessop & H.P. Vonow (Eds.) (2005). Census of South Australian Vascular Plants. 5th Edition. J. Adelaide Bot. Gard. Supplement 1. (Botanic Gardens of Adelaide & State Herbarium: Adelaide). (naturalised)

Batianoff, G.N. and Butler, D.W. (2002). Assessment of Invasive naturalized plants in south-east Queensland. Appendix. 1 Plant Protection Quarterly 17, 27-34. (environmental weed, naturalised)

Blood, K. (2001) NOT USED IN HER BOOK (environmental weed)

Botha, C. (2001). Common Weeds of Crops and Gardens in Southern Africa. ARC - Grain Crops Institute, South Africa. (agricultural weed, garden thug)

Boulos, L., and Nabil el-Hadidi, M (1994). The Weed Flora of Egypt. The American University in Cario press, Cario, Egypt. (agricultural weed)

Bromilow, C. (1995) Problem Plants of South Africa. Briza Publications, Arcardia, South Africa. (weed)

Castro, S.A., Figueroa, J.A., Munoz-Schick, M. and Jaksic, F.M. (2005) Minimum residence time,biogeographical origin, and life cycle as determinants of the geographical extent of naturalized plants in continental Chile. Diversity and Distributions 11: 183-191. Appendix S1 Checklist of 428 naturalized plants in continental Chile, their first record date (FRD), life cycle (LC), biogeographic origin (BO), and number of administrative regions occupied (ARO). Am: America; Eu: Europe; As: Asia; Af: Africa; Au: Australia; N.Z.: New Zealand; Pan: Pantropical; Cosmo: Cosmopolitan; Tro: Tropical. (naturalised)

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 (naturalised)

Dana, E.D., Sanz, M., Vivas, S. and Sobrino, E. (2005). Especies Vegetales Invasoras en Andalucía. Junta de Andalucía. (Section devoted to this taxon).

Environmental Weed List Victoria. Supplied by Weedmanager.Net (Source not cited but possibly drawn from Carr et al. Environmental Weeds of Victoria) (environmental weed)

Flora of the Marquesas islands. Botany Department of Systematic Biology. Smithsonian Institute. (naturalised)

Forman, Jennifer (2003). "The introduction of American plant species into Europe: issues and Consequences." pp. 17-39 in Plant Invasions: Ecological Threats and Management Solutions. Edited by L.E. Child, J.H. Brock, G. Brundu, K. Prach, P. Pysek, P.M. Wade, and M. Williamson. Backhuys Publishers, Leiden, The Netherlands. [This is a draft list - please request a reprint from jennforman@knottybits.com to see the full article]

Fourie, J.C. (1996). Identification and chemical Control of Important Weeds in South African vineyards. Agricultural Research Council and Nietvoorbij Institute for Viticulture and Oenology, Stellenbosch, South Africa. (agricultural weed)

G.R.I.N. TAXON Database GRIN (weed)

Gibson, N., Keighery, B., Keighery, G., Burbidge, A. and Lyons, M. (1994). A floristic survey of the Southern Swan Coastal Plain. Unpublished report for the Australian Heritage Commission prepared by the Department of Conservation and Land Management and the Conservation Council of Western Australia (Inc.). (naturalised)

PLANT INVADERS IN SPAIN [CHECK-LIST] `The Unwanted Citizens' Dana, E.D., Sanz-Elorza, M. & Sobrino, E. (1) Sanz-Elorza, M., Dana, E.D. & Sobrino, E. 2001. Aproximaci en al listado de plantas al_ctonas invasoras reales y potenciales en Espana. Lazaroa 22: 121-131. [English abstract] (2) Dana, E.D. Cerrillo, M.I., Sanz-Elorza, M., Sobrino, E. & Mota, J.F. 2001. Contribucion al conocimiento de las xen_fitas en Espana: cat_logo provisional de la flora al_ctona de Almer_a. Acta Botanica Malacitana 26 264-276. [English abstract] We have included also some unpublished recent data within this list. The species have been arranged first by their invasive character (from higher to lower). Within the most aggressive, species have been presented by their morphology (herbaceous, woody, and so on). Within species are alphabetically listed. Consideration of `Invasiveness' follows the recent proposal by Richardson, D., Pysek, P., Rejmanek, M., Barbour, M.G., Panetta, F.D. & West, C.J. 2000. Naturalization and invasion of alien plants: concepts and definitions. Diversity and Distributions 6: 93-107. (environmental weed, naturalised)

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) (casual alien)

EXOTIC WEEDS AND ALIENS. An html page found on the UNDP sponsored Sustainable Development Networking Programme Website - India now being maintained by the ENVIS Secretariat, Ministry of Environment and Forests, Government of India, New Delhi. (naturalised, weed)

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

2006/115 Non-indigenous flora of the Azores Archipelago (PT) EPPO Reporting Service, NO. 5, PARIS, 2006-05-01 (naturalised)

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 (naturalised)

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. (casual alien)

Albrecht, D. (1998) Weeds of Alice Springs. Northern Territory Herbarium, Unpublished Doc. [Dave Albrecht (weed)

Alien Species. On March 10, the Japanese Cabinet submitted the bill dealing with invasive alien species to the Diet. The Diet passed the bill without amendments and the Invasive Alien Species Act was promulgated as of June 2, 2004. List of alien species recognized to be established in Japan or found in the Japanese wild (as of October 27, 2004) [PDF] (naturalised)

Alien plants of Fuerteventura, Canary Islands. Plantas extranjeras de Fuerteventura, Islas Canarias - korrigierte Fassung vom 23.01.2002 - Prof. Dr. Dietmar Brandes, Dipl.-Biol. Katrin Fritzsch. Arbeitsgruppe für Vegetationsökologie und experimentelle Pflanzensoziologie Botanisches Institut und Botanischer Garten der TU Braunschweig D-38023 Braunschweig. Abstract: The nowadays flora of Fuerteventura contains some 780 species. At least 119 species are aliens, some 150 further species of mediterranean and/or North African origin are probably introduced too. The estimated percentage of aliens therefore reaches 35 %. (naturalised)

Anon (1992). The Grower's Weed Identification Handbook by Family and by Aphabetical Listing. Publication 4030. - Division of Agriculture and Natural Resources, University of California. (agricultural weed)

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

Argentina AGRO Management Malezas Incluidas. Argentinian Software Development Company. (weed)

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

Barker, W.R., R.M.Barker, J.P. Jessop & H.P. Vonow (Eds.) (2005). Census of South Australian Vascular Plants. 5th Edition. J. Adelaide Bot. Gard. Supplement 1. (Botanic Gardens of Adelaide & State Herbarium: Adelaide). (naturalised)

Batianoff, G.N. and Butler, D.W. (2002). Assessment of Invasive naturalized plants in south-east Queensland. Appendix. 1 Plant Protection Quarterly 17, 27-34. (environmental weed, naturalised)

Blood, K. (2001) NOT USED IN HER BOOK (environmental weed)

Botha, C. (2001). Common Weeds of Crops and Gardens in Southern Africa. ARC - Grain Crops Institute, South Africa. (agricultural weed, garden thug)

Boulos, L., and Nabil el-Hadidi, M (1994). The Weed Flora of Egypt. The American University in Cario press, Cario, Egypt. (agricultural weed)

Bromilow, C. (1995) Problem Plants of South Africa. Briza Publications, Arcardia, South Africa. (weed)

Castro, S.A., Figueroa, J.A., Munoz-Schick, M. and Jaksic, F.M. (2005) Minimum residence time,biogeographical origin, and life cycle as determinants of the geographical extent of naturalized plants in continental Chile. Diversity and Distributions 11: 183-191. Appendix S1 Checklist of 428 naturalized plants in continental Chile, their first record date (FRD), life cycle (LC), biogeographic origin (BO), and number of administrative regions occupied (ARO). Am: America; Eu: Europe; As: Asia; Af: Africa; Au: Australia; N.Z.: New Zealand; Pan: Pantropical; Cosmo: Cosmopolitan; Tro: Tropical. (naturalised)

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 (naturalised)

Dana, E.D., Sanz, M., Vivas, S. and Sobrino, E. (2005). Especies Vegetales Invasoras en Andalucía. Junta de Andalucía. (Section devoted to this taxon).

Environmental Weed List Victoria. Supplied by Weedmanager.Net (Source not cited but possibly drawn from Carr et al. Environmental Weeds of Victoria) (environmental weed)

Flora of the Marquesas islands. Botany Department of Systematic Biology. Smithsonian Institute. (naturalised)

Forman, Jennifer (2003). "The introduction of American plant species into Europe: issues and Consequences." pp. 17-39 in Plant Invasions: Ecological Threats and Management Solutions. Edited by L.E. Child, J.H. Brock, G. Brundu, K. Prach, P. Pysek, P.M. Wade, and M. Williamson. Backhuys Publishers, Leiden, The Netherlands. [This is a draft list - please request a reprint from jennforman@knottybits.com to see the full article]

Fourie, J.C. (1996). Identification and chemical Control of Important Weeds in South African vineyards. Agricultural Research Council and Nietvoorbij Institute for Viticulture and Oenology, Stellenbosch, South Africa. (agricultural weed)

G.R.I.N. TAXON Database GRIN (weed)

Gibson, N., Keighery, B., Keighery, G., Burbidge, A. and Lyons, M. (1994). A floristic survey of the Southern Swan Coastal Plain. Unpublished report for the Australian Heritage Commission prepared by the Department of Conservation and Land Management and the Conservation Council of Western Australia (Inc.). (naturalised)

Zhang, Z.P. & Hirota, S. (Eds) (2000). Chinese Colored Weed Illustrated Book. Institute for the Control of Agrochemicals, Ministry of Agriculture, P.R.China, and the Japan Association For Advancement of Phyto-Regulators. (weed)




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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!