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Japanese Knotweed Resources

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University of Alaska - Anchorage. Alaska Center for Conservation Science.
See also: Non-Native Plant Species List for additional factsheets (species biographies) and species risk assessment reports of non-native species present in Alaska and also non-native species currently not recorded in Alaska (potential invasives)
Washington State Noxious Weed Control Board.
University of Georgia. Center for Invasive Species and Ecosystem Health.
Provides state, county, point and GIS data. Maps can be downloaded and shared.
California Department of Food and Agriculture.
See also: Included on California's noxious weed list; see Encycloweedia: Program Details for additional resources
New Hampshire Department of Agriculture, Markets, and Food. Division of Plant Industry.
See also: New Hampshire's Prohibited Invasive Plant Fact Sheets for additional invasive trees, shrubs, vines, and herbaceous plants
Pennsylvania State University. Pennsylvania Sea Grant.
See also: Aquatic Invasive Species: Resources for additional species information
Missouri Department of Conservation.
USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.
IUCN. Species Survival Commission. Invasive Species Specialist Group.
Columbia University. Center for Environmental Research and Conservation.
Ontario's Invading Species Awareness Program (Canada).
University of Georgia. Center for Invasive Species and Ecosystem Health.
University of Georgia. Center for Invasive Species and Ecosystem Health.

Indiana Department of Natural Resources. Invasive Plant Species Assessment Working Group.

See also: Species Assessments and Invasive Species for exotic animal and plant pests invading Indiana, causing economic and visual damage

Cornwall County Council (United Kingdom).

Pennsylvania State University. Cooperative Extension.
Pennsylvania Department of Conservation and Natural Resources.
See also: Invasive Plant Fact Sheets for plant species (trees, shrubs, vines, herbs and aquatic plants) that have impacted the state's natural lands
Ohio Invasive Plants Council.
See also: Invasive Plants of Ohio for worst invasive plant species identified in Ohio's natural areas