Global Compendium of Weeds
Ageratina riparia (Asteraceae)
Presented here is summary information about the species Ageratina riparia 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 
. 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, weed [for definitions, see the GCW introduction .]
Origin (native to where): Trop.America. Mexico, Mexico, Mexico
Data sources:
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)
A list of weed species from various New Zealand references to "weeds" compiled by P.A.Williams, Landcare Research, New Zealand. (naturalised, weed)
Aliens List, Nominated Worst Invasive Weeds after a request by Sarah Lowe from ISSG New Zealand to the Aliens email list group. (environmental weed)
An analysis of 233 species of important and potentially important invasive plants in South Africa (i.e. the reason for importation). The species were extracted from the book Henderson, L. 2001. Alien weeds and invasive plants. Plant Protection Research Institute Handbook No. 12. (L. Henderson pers. comm.)
Auld, B.A. and Medd, R.W. (1992) WEEDS, An illustrated botanical guide to the weeds of Australia. Inkata Press, Melbourne. (weed)
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. (cultivation escape, environmental weed, naturalised)
Blood, K. (2001) NOT USED IN HER BOOK (environmental weed)
Bushland Weeds of the Blue Mountains Region. These lists were compiled by the Blue Mountains Bushcare Network. PO Box 126 Leura, NSW, 2780 (environmental weed)
Bushland Weeds of the Sydney Region. These lists were compiled by the Bushland Weeds Education Group, Sydney (An initiative of the Australian Association of Bush Regenerators). They have been prepared by practising Bush Regenerators to provide information about which popular garden plants have been found to be troublesome or destructive weeds in bushland of the Sydney region. They can be considered reliable lists for horticultural educators, practising horticulturists and home gardeners, although they will no doubt be added to over the years. AABR c/- Total Environment Centre Level 2/ 362 Kent Street, Sydney 2000 ABN 33 053 528 029 Australian Association of Bush Regenerators (NSW) AABR Inc. (environmental weed, garden thug)
Chris Buddenhagen and Melanie Newfield (pers comm. 2001) A list of potential and actual environmental weeds for New Zealand. Department of Conservation. (environmental weed)
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)
Cronk, Q.C.B and Fuller, J.L. (1995). Plant Invaders, The threat to natural ecosystems. Chapman and Hall United Kingdom (environmental weed)
Germplasm Resources Information Network G.R.I.N. GRIN (naturalised, weed)
Green, P. (1994) NORFOLK ISLAND SPECIES LIST. In Flora of Australia, Vol.49, AGPS. Australian Biological Resources Study (Peter Green) (naturalised)
Henderson, L. (2001) Alien Weeds and Invasive Plants. Plant Protection Research Institute & Agricultural Research Council, South Africa. (noxious weed)
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 (weed)
HortGuard and GrainGuard Initial Threat List Compilations (agricultural weed)
Introduced (Naturalised) Species to the United States [USDA, NRCS 1999. The PLANTS database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA. ] (naturalised)
John Hosking, NSW Department of Agriculture, Weed Database 30 April 2003 (agricultural weed, naturalised)
Landcare Research New Zealand (2001) Plant Names Database. (naturalised)
List of exotic plants that have naturalised within the Wet Tropics Bioregion from Werren, G. (2001) 'Environmental Weeds of the Wet Tropics Bioregion: Risk Assessment & Priority Ranking'. A report prepared for the Wet Tropics Management Authority, Cairns [Source of data: Queensland Herbarium records (HERBRECS) to November 2000; emended by concatenating conspecific subspecies/varieties, and inserting additional species otherwise known to have naturalised within the region] (environmental weed)
MAF BIOSECURITY AUTHORITY STANDARD. 155.02.05. Importation of Seed for Sowing. 1.5.1 QUARANTINE IMPURITIES. No seed lot will be released for sowing in New Zealand if it contains: * unidentified seed * regulated pests * in excess of 0.1% by weight of soil particles * seed of any of the quarantine weed species listed in the schedule below. 1.5.2 SCHEDULE OF REGULATED (QUARANTINE) WEED SEEDS
National Surveillance Pest Plants. Wellington Regional Council. These are plants which, while not being an immediate problem to the Wellington Region, have been identified as representing an actual and potential problem elsewhere and over time may become a problem here. The Council will provide advice and education about these plants. The sale, distribution and propagation of these plants is prohibited. The following plants are National Surveillance Plant Pests. (noxious weed)
Noxious weeds in the US and Canada. This web site provides a searchable database of the noxious weed lists for all U.S. states and six southern provinces of Canada. The database can be searched by plant name, state name, or by clicking on a map. This portion of the INVADERS web site is supported by the USDA Agricultural Research Service. Principal investigators: Dr. Kerri Skinner, University of Nebraska - Kearny, NE Dr. Lincoln Smith, USDA-ARS Western Region Research Center, Albany, CA Peter Rice, University of Montana - Missoula, MT (noxious weed)
Owen, S.J. (1996). Weeds of concern on conservation lands in New Zealand. Ecological weeds on conservation land in New Zealand: A database. 118p. Department of Conservation, Wellington. (environmental weed, weed)
Parsons, W.T. and Cuthbertson, E.G. (1992). Noxious Weeds of Australia. Inkata Press, Melbourne & Sydney. (noxious weed)
Pat Enwright (2003) Adventive species of the Wellington Conservancy ecological district. Project initiated by John Sawyer of D.O.C and further refined and updated by Colin Ogle of Wanganui before Ewen Cameron and Mei Nee Lee of the Auckland Museum herbarium very kindly provided lists of adventive species by ecological district for the Wellington Conservancy from the AK database. I must also thank Ewen Cameron and Rhys Gardner for identification of a number of specimens included in this list, Phillipa Crisp from W.R.C. also supplied information on species recorded by or on behalf of W.R.C and not already included in the database. Pat Enwright pers. comm. [Pat.Enright@nz.towerlimited.com] (naturalised)
Plant Threats to Pacific Ecosystems. A product of the Pacific Island Ecosystems at Risk project (PIER). This table lists all species that are profiled on PIER. It includes those of environmental concern (including those that are probably of threat only to islands with high elevations) as well as agricultural and ruderal weeds. Jim Space, PEIR Co-ordinator. (environmental weed)
Plants Naturalised in Hawai'i. Bishop Musem, Oahu. DISCLAIMER: Be it known to all who use this web resource, that this is NOT intended to represent a complete, definitive, or authoritative checklist of the flora and fauna of the Hawaiian Islands. This is a Beta-Test site that makes available online a copy of the taxonomic database currently used by the Bishop Museum Botany collection for its collections databases. Some groups in this list have been thoroughly scrutinized and do, in fact, represent an essentially complete checklist for the Hawaiian Islands. Other groups, however, are NOT complete, and only represent an unverified listing of what happens to be in the Bishop Museum specimen collection database. (naturalised)
Randall, R.P. & Kessal (agricultural weed, environmental weed, naturalised, noxious weed)
Randall, R.P. (2001). Garden thugs, a national list of invasive and potentially invasive garden plants. Plant Protection Quarterly 16 (4), 138-171. (garden thug)
Randall, R.P., Mitchell, A.A. & Waterhouse, B.M. (1999) Tropical Weeds Report. Internal Report to Manager of Plant Industry Protection, Dept of Agriculture, Western Australia. (weed)
Reid, V.A. (1998). The Impact of Weeds on Threatened Plants. DOC, Science & Research Internal Report N° 164. (environmental weed, weed)
Richardson, F.J., Richardson, R.G. and Shepherd, R.C.H. (2006). Weeds of the South-East. An identification guide for Australia. R.G. & F.J. Richardson. Meredith, Victoria. ISBN 0958743932, 438 pages. (weed)
Robertson, M. (2006). Environmental weed management guides for regional Australia. A survey conducted by the Cooperative Research Centre for Australian Weed Management (Weeds CRC) has seen regional Natural Resource Management (NRM) bodies throughout Australia have input into the next series of weed management guides. For the interest of those who responded to the survey, this document is a brief summary of the findings and an update of the project. CRC for Australian Weed Management, Adelaide. (environmental weed)
Short, P. (Phil). (1998) Guide to the Weeds of the Northern Territory. Darwin Herbarium (noxious weed, weed)
State Noxious Weeds of the USA. - State and Federal Composite List of All U.S. Noxious Weeds. USDA, NRCS 1999. The PLANTS database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA. (noxious weed)
This list of invasive plants affecting natural areas in the U.S. (including Hawaii) has been compiled from a wide variety of publications, reports, surveys, and occasional personal observations. Sources of plant lists include the National Park Service and other federal agencies, state and local natural resource and related departments, Exotic Pest Plant Councils and related organizations, The Nature Conservancy, and universities. Sources for each plant listed are provided on the table (a legend for the source code is provided from the REFERENCE(S) header). The current list includes over 1000 plants and is updated as needed. Please contact Jil Swearingen (jil_swearingen@nps.gov) regarding any errors, omissions or potential additions to the list. (environmental weed)
Wagner, W.L., Herbst, D.R. and Lorence, D.H. (2005). Naturalised Flora of the Hawaiian Islands website. (04/25/2006) (naturalised)
Weber, E. (2003). Invasive Plant Species of the World. A Reference Guide to Environmental Weeds. CABI Publishing, UK. [dist data refers to regions where plant is an environmental weed] (environmental weed)
(naturalised, weed)
Green, P. (1994) NORFOLK ISLAND SPECIES LIST. In Flora of Australia, Vol.49, AGPS. Australian Biological Resources Study (Peter Green) (naturalised)
Henderson, L. (2001) Alien Weeds and Invasive Plants. Plant Protection Research Institute & Agricultural Research Council, South Africa. (noxious weed)
Holm,
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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.
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