Ailanthus altissima, Tree-of-Heaven@ (11) Centaurea solstitialis, Yellow Starthistle@ (7) Polygonum cuspidatum, Japanese Knotweed@ (2) Pueraria, Kudzu@ (7) Tamarix, Tamarisk@ (9) 1. 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). 2. Norwalk River Watershed Invasive Species - Common and scientific species names along with detailed information about the particular invasive plant. 3. 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). 4. The Worst Invasive Species - The Nature Conservancy's national program for dealing with harmful invasive plant species on its preserves. 5. 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. 6. APHIS Web: Noxious Weeds - APHIS has a major responsibility in preventing the spread of non-indigenous weeds into and through the United States. 7. 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. 8. BLM Weeds - The Bureau of Land Management's "Pulling Together-National Strategy for Invasive Plant Management". 9. California Exotic Pest Plant Council - Dedicated to finding solutions to problems caused by non-native pest plant invasions of the state's natural areas. 10. Connecticut Invasive Plant Working Group - Information about non-native invasive and potentially invasive vascular plants in Connecticut, USA. 11. Connecticut Policy on Non-Native Invasive Plant Species - State Department of Environmental Protection policy on non-native plant species. 12. Department of Transportation- Invasive Species Policy Guidelines - The Federal Highway Administrations directives on implementing the executive order on invasive species. 13. Eastern Region Non-Native Invasive Species - Information about management of exotic plant species in the forests of the northeastern United States. 14. 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. 15. 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. 16. Federal Interagency Committee for the Management of Noxious and Exotic Weeds - Information about management of invasive weeds in the USA. 17. 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. 18. Georgia Exotic Pest Plant Council - Information about the adverse effects exotic pest plants have on the diversity plants and animals native to Georgia, USA. 19. 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. 20. 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. 21. How Landowners Can Prevent Invasive Plant Species - Tips offered for the average homeowner, gardener. 22. 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. 23. Idaho Weed Summit - The Spread of Invasive Weeds in Western Wildlands. 24. Influence of Invasive Species on Coastal Plant Communities - Abstracts of studies done on the California coast. 25. 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. 26. Invasive Alien Plant Species of Virginia - Invasive species list, fact sheets, and list of native alternatives. 27. 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. 28. Invasive Non-Native Plant Species - This is a list of vascular plant species which are invasive into "natural areas" in Connecticut. 29. Invasive Plant Atlas of New England - Maps and images of invasive species in the northeastern U.S. 30. Invasive Plants - Information from the Canadian Botanical Conservation Network. Includes species list, facts about economic costs, and bibliography. 31. Invasive Plants Association of Wisconsin - Educational non-profit organization concerned with the control of exotic plant species in Wisconsin (USA). 32. Invasive Plants of Natural Habitats in Canada - Discusses invasive species, methodology, and relevant legislation in Canada. 33. Invasive Plants: Changing the Landscape of America: Fact Book - Full text of 1998 publication by Randy Westbrooks, USDA-APHIS. 34. Invasive Species - USGS Biological resources that deal with invasive plant species. 35. Invasive Weeds - Photos and descriptions of invasive, noxious, and troublesome plants of North Dakota. Includes articles and weed control guide. 36. 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. 37. MetroActive News & Issues: Alien Plants - The dreaded Arundo, also known as giant reed grass, coming soon to a neighborhood near you. 38. 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. 39. Non-Native Invasive Terrestrial Plants in Florida - Descriptions and images of 12 of the most invasive terrestrial plants in Florida. 40. Pacific Island Ecosystems at Risk - Listings and descriptions of invasive plant species which threaten Pacific island ecosystems, particularly those of Micronesia and American Samoa. 41. 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 of the United States. 42. Redwood National and State Parks - Exotic plant management of the over 190 exotic species invading Redwood Parks. 43. Southeastern Exotic Pest Plant Council - Information about exotic plants invading natural areas in the southeastern states, controlling invasive plants, and landscaping with native plants. 44. Southwest Exotic Plant Mapping Program - A collaborative program designed to develop a regional database of exotic plant distributions for the southwest. 45. VA NHP Invasive Alien Plant Cooperative Project - The Virginia Native Plant Society (VNPS) and the Department of Conservation and Recreation share a commitment to protect native plant habitats from the threat of invading exotics. 46. Weed Risk Assessment - evaluates the risks associated with the introduction of exotic plants not present, and those recently introduced and considered to pose a threat to agriculture and the environment 47. Wisconsin Department of Natural Resources - Invasive Species - Information about invasive plant and animal species in Wisconsin. Includes many detailed fact sheets.

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