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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info

Additional Resources

Native Plant Resources

Information about native plants, invasive vegetation and planting stormwater facilities

4 County Cooperative Weed Management Area

Cooperative weed management in Oregon and Washington

East Multnomah Soil & Water Conservation District

Serving Multnomah County east of the Willamette River

Invasive and Noxious Weeds

US Department of Agriculture

Invasive Plant and Pest Management

Portland Parks & Recreation

National Arboretum

Invasive plants

Oregon Department of Agriculture

Noxious Weed Control

The Nature Conservancy

Take on the invaders

Weeds Gone Wild

Alien plant invaders of natural areas

West Multnomah Soil & Water Conservation District

Serving west Multnomah County and Sauvie Island