Ailanthus altissima, Tree-of-Heaven@ Centaurea solstitialis, Yellow Starthistle@ Polygonum cuspidatum, Japanese Knotweed@ Pueraria, Kudzu@ Tamarix, Tamarisk@

» APHIS Web: Noxious Weeds    APHIS has a major responsibility in preventing the spread of non-indigenous weeds into and through the United States.    http://www.aphis.usda.gov/ppq/weeds/

» BLM National List of Invasive Weed Species of Concern    The United States Bureau of Land Management's list of invasive weed species of concern in regions where the agency has responsibilities (western United States).    http://www.blm.gov/co/st/en/BLM_Programs/botany/invasiweed.html

» Biological Control of Non-Indigenous Plant Species    Information and research from Cornell University on invasive plants. Information on Purple Loosestrife, Garlic Mustard, and Phragmites australis.    http://www.invasiveplants.net/

» California Exotic Pest Plant Council    Dedicated to finding solutions to problems caused by non-native pest plant invasions of the state's natural areas.    http://www.cal-ipc.org

» Connecticut Invasive Plant Working Group    Information about non-native invasive and potentially invasive vascular plants in Connecticut, USA.    http://www.hort.uconn.edu/cipwg/

» Connecticut Policy on Non-Native Invasive Plant Species    Information provided by the state Department of Environmental Protection control measures, identification and education.    http://www.ct.gov/dep/cwp/view.asp?a=2702&q=323496&depNav_GID=1641

» Department of Transportation- Invasive Species Policy Guidelines    The Federal Highway Administrations directives on implementing the executive order on invasive species.    http://www.fhwa.dot.gov/environment/inv_dot.htm

» Eastern Region Non-Native Invasive Species    Information about management of exotic plant species in the forests of the northeastern United States.    http://www.fs.fed.us/r9/wildlife/nnis/

» Ecological Monitoring and Assessment Network    Discusses the need for monitoring, role of naturalists, use of research collections, research methods, and species identification. Article is by Erich Haber.    http://www.eman-rese.ca/eman/ecotools/protocols/terrestrial/exotics/intro.html#toc

» Environmental Weeds at Bream Head    A study of environmental weeds found on the coastal fringe of Bream Head and in private gardens at Ocean Beach and Urquharts Bay, Northland, New Zealand.    http://www.igrin.co.nz/trisha/Breamhead.html

» Federal Interagency Committee for the Management of Noxious and Exotic Weeds    Information about management of invasive weeds in the USA.    http://ficmnew.fws.gov/

» Florida Exotic Pest Plant Council    Includes information on invasive exotic species, database, proposed research and educational programs, control guides and management plans, mailing list, membership information, and links.    http://www.fleppc.org/

» Georgia Exotic Pest Plant Council    Information about the adverse effects exotic pest plants have on the diversity plants and animals native to Georgia, USA.    http://www.gaeppc.org/

» Hawaii's Most Invasive Horticultural Plants    Overview of the problem, list of invasive garden plants, and species accounts from the Hawaii Division of Forestry and Wildlife.    http://www.state.hi.us/dlnr/dofaw/hortweeds/

» Hawaiian Alien Plant Studies, UH Botany    A forum to promote public awareness and exchange of information regarding problems associated with the spread of alien plant species.    http://www.botany.hawaii.edu/faculty/cw_smith/aliens.htm

» How Landowners Can Prevent Invasive Plant Species    Tips offered for the average homeowner, gardener.    http://aginfo.psu.edu/News/september99/species.html

» How to Prevent the Spread of Noxious Weeds    Controlling weeds poses a special dilemma because, once a weed infestation is identified, it is often already so large that containment is difficult and expensive.    http://www.blm.gov/education/weed/weed.html

» Idaho Weed Summit    The Spread of Invasive Weeds in Western Wildlands.    http://www.blm.gov/weeds/BOISUMMI.WPD.html

» Influence of Invasive Species on Coastal Plant Communities    Abstracts of studies done on the California coast.    http://www.sonoma.edu/people/cushman/research3.html

» Institute of Pacific Islands Forestry - Invasive Plants in Hawaii    Information about investigations of the ecology of invasive plant species; impacts of invasive species on forest health, management and restoration.    http://www.fs.fed.us/psw/topics/ecosystem_processes/tropical/invasive/

» Invasive Grass Species In Southern Africa    Invasiveness of a perennial soil pathogen-sensitive grass (Ammophila arenaria) and an annual grass (Cenchrus biflorus) in Southern Africa are studied in relation to soil pathogens, mycorrhizal fungi and genetic structure.    http://www.nioo.knaw.nl/cto/invass/

» Invasive Plant Atlas of New England    Database of invasive and potentially-invasive plants in the region with management guide and calendar of events.    http://nbii-nin.ciesin.columbia.edu/ipane/

» Invasive Plants    Information from the Canadian Botanical Conservation Network. Includes species list, facts about economic costs, and bibliography.    http://www.rbg.ca/cbcn/en/projects/invasives/invade1.html

» Invasive Plants Association of Wisconsin    Educational non-profit organization concerned with the control of exotic plant species in Wisconsin (USA).    http://ipaw.org/

» Invasive Plants of Natural Habitats in Canada    Discusses invasive species, methodology, and relevant legislation in Canada.    http://www.cws-scf.ec.gc.ca/publications/inv/cont_e.cfm

» Invasive Species    USGS Biological resources that deal with invasive plant species.    http://biology.usgs.gov/cro/invasive.htm

» Invasive Weeds    Photos and descriptions of invasive, noxious, and troublesome plants of North Dakota. Includes articles and weed control guide.    http://www.ag.ndsu.nodak.edu/invasiveweeds/

» Invasive Woody Plants in the Tropics Research Group    Global review of invasions resulting in a comprehensive database, an analysis of common characteristics and recommendations for management and control.    http://www.bangor.ac.uk/~afs101/iwpt/welcome.shtml

» MetroActive News & Issues: Alien Plants    The dreaded Arundo, also known as giant reed grass, coming soon to a neighborhood near you.    http://www.metroactive.com/papers/metro/05.01.97/plants-9718.html

» Mid-Atlantic Exotic Pest Plant Council    Addresses the problem of invasive exotic plants in the Mid-Atlantic region of the US. Brochure, e-mail group, organizational information, and links.    http://www.ma-eppc.org/

» Non-Native Invasive Terrestrial Plants in Florida    Descriptions and images of 12 of the most invasive terrestrial plants in Florida.    http://aquat1.ifas.ufl.edu/terinv.html

» Norwalk River Watershed Invasive Species    Common and scientific species names along with detailed information about the particular invasive plant.    http://www.norwalkriver.org/invsp.htm

» Pacific Island Ecosystems at Risk    Listings and descriptions of invasive plant species which threaten Pacific island ecosystems, particularly those of Micronesia and American Samoa.    http://www.hear.org/pier/

» Plant Conservation Alliance - Alien Plant Working Group    is a web-based project of the PCA that provides information for the general public, land managers, researchers, and others on the serious threat and impacts of invasive alien (exotic, non-native) plants to the native flora, fauna, and natural ecosystems o    http://www.nps.gov/plants/alien/

» Redwood National and State Parks    Exotic plant management of the over 190 exotic species invading Redwood Parks.    http://www.nps.gov/archive/redw/exotics.htm

» Southeastern Exotic Pest Plant Council    Information about exotic plants invading natural areas in the southeastern states, controlling invasive plants, and landscaping with native plants.    http://www.se-eppc.org/

» TNC Wildland Weeds Management & Research    The Nature Conservancy's U.S. program for dealing with harmful invasive plant species threatening wild land biodiversity and invading TNC preserves. Site has weed alerts and resources on weed control.    http://tncweeds.ucdavis.edu/

» The Invasive Plant Council of New York State    A not-for-profit organization that provides guidance on the management of invasive plants with the goal of protecting biodiversity in New York (USA).    http://ipcnys.org/

» The Worst Invasive Species    The Nature Conservancy's national program for dealing with harmful invasive plant species on its preserves.    http://tncweeds.ucdavis.edu/worst.html

» Wisconsin Department of Natural Resources - Invasive Species    Information about invasive plant and animal species in Wisconsin. Includes many detailed fact sheets.    http://www.dnr.state.wi.us/invasives/