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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Suite 1000, Portland, OR 97204

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

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server. is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.