• Skip to main content
Tualatin Soil and Water Conservation District Logo
  • Our Priorities
    • Clean and Abundant Water
    • Healthy Soil
    • Food & Farms
    • Thriving Habitat
    • Invasive Species Management
    • Resilient Forests
  • Our Programs
    • Rural Conservation
    • Urban Conservation
    • Forest Conservation
    • Habitat Conservation
    • Invasive Species
    • Conservation Education
    • Grants & Funding
  • Get Involved
  • Stay Informed
  • Subscribe
  • Our Story
  • Search

Weed & Pest Directory

Welcome to the Weed & Pest Directory

Seperator

On this page:

EDRR Species
Common Species
View All Species

You may also like:

Early Detection & Rapid Response
Integrated Pest Management
Back to Invasive Species Management
Knotweed flowers.

Knotweed flower.

Giant Hogweed Stem

Giant hogweed stem.

How to use this directory:

Easily identify weeds and pests by their photo or description, or search by agricultural, aquatic, forest, etc. Learn how these invasives affect the environment and economy.

View All Species
Tanwave

Early Detection and Rapid Response Species (EDRR):

Seperator

These plant species are our highest priority for treatment in Washington County. They are classified as EDRR because there is a chance to keep them at bay if they are actively treated. If you find any of these weeds, we can treat it for you, free of charge.

Spurge laurel flowers

Spurge Laurel (Daphne laureola)

EDRR / Forest / Plant / Toxic
Yellow sulphur cinquefoil flowers.

Sulphur Cinquefoil (Potentilla recta)

Agricultural / EDRR / Plant
Knotweed leaves and flowers.

Woody Knotweeds (Polygonum species)

Aquatic or Semiaquatic / EDRR / Plant
  • « Previous
  • 1
  • …
  • 3
  • 4
  • 5
Seperator

Common Weed Species:

Seperator

These weeds can be found throughout Washington County. They are not considered “priority” and don't require “rapid response,” but they should be responsibly removed just the same to prevent their spread, and to help ecosystems stay in balance.

Person holding bittersweet nightshade flowers

Bittersweet Nightshade (Solanum dulcamara)

Common / Forest / Plant / Toxic
Blackberry patch

Blackberry (Rubus species)

Agricultural / Common / Forest / Plant
Bull thistle flowers

Bull Thistle (Cirsium vulgare)

Agricultural / Common / Plant
Purple flower spike of butterfly bush.

Butterfly Bush (Buddleia davidii)

Common / Plant
Common broom flowers

Common Broom (Cytisus scorparius)

Agricultural / Common / Forest / Plant / Toxic
Field of yellow flowered common tansy.

Common Tansy (Tanacetum vulgare)

Agricultural / Common / Plant / Toxic
  • 1
  • 2
  • 3
  • …
  • 6
  • Next »
View All Species
Subscribe News Icon

Email me about caring for the soil and water!

Get Involved Icon

Find an Event

Calendar of Events
Upcoming Workshops

reflection in a lake

About Us

  • Our Story
  • Our Watershed
  • Our Staff
  • Our Board
  • Careers
  • Reports & Publications

Resources

  • Event Calendar
  • Weed & Pest Directory
  • Contractor Directory
  • Library & Videos
  • Tool Loan Program
  • News
  • Watershed Navigator

Contact Us

Tualatin Soil and Water
Conservation District
7175 NE Evergreen Pkwy #400
Hillsboro, OR. 97124

Phone: 503-334-2288
Office Hours: 8:00am - 4:30pm
Email Us

Follow Us

العربية العربية 简体中文 简体中文 繁體中文 繁體中文 English English Filipino Filipino Français Français Deutsch Deutsch हिन्दी हिन्दी 한국어 한국어 Русский Русский Español Español Tiếng Việt Tiếng Việt

© 2023 Tualatin Soil and Water Conservation District. All Rights Reserved. | Sitemap | Non-Discrimination Policy | Privacy Policy | Website Design by Hoopla Creative

 

Loading Comments...