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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

Containment Species

The city and its partners are mapping these species and managing them in limited circumstances.

Purple Loosestrife

Lythrum salicaria


Centaurea diffusa and C. maculosum

Spurge Laurel

Daphne laureola


Polygonum cuspidatum, P. polystachyum, P. sachalinense