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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

Watch Species

The city and its partners are concerned about these species, and encourage landowners to avoid planting them or to manage them carefully.

Italian Arum

Arum italicum

Lesser Celandine

Ranunculus ficaria


Aegopodium podagraria

Yellow Archangel

Lamiastrum galeobdolon


Phytolacca americana