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Spotted Knapweed 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)

USDA. FS. Forest Health Technology Enterprise Team.

See also: Invasive Species Publications for more publications
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
Alberta Invasive Species Council (Canada).
See also: Fact Sheets for more information about individual invasive species, including those listed as "Prohibited Noxious" and "Noxious" under the Alberta Weed Control Act
Missouri Department of Conservation.
See also: Problem Plant Control (scroll to Invasive Plants section) for more information to help you identify and control most common invasive plants in Missouri
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.
University of Georgia. Center for Invasive Species and Ecosystem Health.
University of Pennsylvania. The Pennsylvania Flora Project of Morris Arboretum.
See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania
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
University of Georgia. Center for Invasive Species and Ecosystem Health.
King County Department of Natural Resources (Washington). Water and Land Resources Division.
North Dakota State University. Extension Service.
Colorado Weed Management Association.