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Weed Resources
Weed Identification
PNW Weed ID Image Collection
Pacific Northwest weed photos and names.
Washington State Weed ID Key
Easy to use key to help ID weeds in the PNW.
Common Weeds Photo Gallery and Key
Weed photos and identification keys from UC Davis.
Weed Society of America Weed Identification
Identification and information on weeds from all over the US.
Weed Management
PNW Weed Management Handbook
Guide to managing weeds in the Pacific Northwest. Please use only the "Management- Home Gardens and Landscapes" section. Includes a new Weed Identification Tool.
Weed Ecology and Management
Comprehensive website from Cornell University on understanding and managing weeds.
Invasive and Noxious Weeds
Oregon Noxious Weed List
List of weeds designated Noxious by the Oregon Department of Agriculture including photos and descriptions.
Center for Invasive Plant Management
Lots of great information on weeds and weed management in a huge variety of sub-pages. Two of the more useful sub-pages are Invasives in the Garden and the Weed Image Galleries.
Invasipedia
List of invasive weeds, animals and pathogens in an easy to use format.
King County, Washington Noxious Weed List
Photos and descriptions of many common noxious weeds.
Western US Invasive Plant Guide
List of weeds and plants designated Invasive including photos and descriptions along with information about how to report invasive plant sightings.
Invasive Species Management
West Multnomah Soil and Water Conservation District information on invasive species in the Portland Metro area including identification, reporting, and eradication tools.
Problems, questions, or suggestions? Contact: webmaster@metromastergardeners.org
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