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Invasive Species Resources

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Australian Government. Department of Agriculture and Water Resources.

Produced by: Australian Department of Agriculture, Fisheries, and Forestry. See also: Aquatic Animal Diseases Significant to Australia: Identification Field Guide, 4th Edition
University of Idaho Extension.
This pocket guide has color photographs of all the weeds on Idaho's official noxious weeds list. Inside find maps showing each weed's distribution by county, leaf shape illustrations to aid in identification, and features to help distinguish the weeds from similar-looking plants.
Környezetvédelmi és Vízügyi Minisztérium (Ministry of Environmental Protection and Water Resources, Hungary); National Ecological Network.