Tansy ragwort (Senecio jacobaea) is an invasive weed with a long and deadly history in the Pacific Northwest. In Oregon, it is designated as a Class B invasive weed. It is believed to have been introduced […]
Archive | Weeds
Detecting, controlling, and eradicating invasive plants are topics captured in the Weeds category. Invaders affect wildlife and crop production. In some cases they pose health risks to people and animals.
Clean Your Boots After Your Hike!
Summer is upon us and that means Oregonians will be out in force, visiting the many wonderful parks and recreation areas for which our state is so famous. Native plants and native wildlife definitely make our […]
![By en:User:Kkmd (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons](https://i2.wp.com/conservationdistrict.org/wp-content/uploads/1024px-Mount_Hood_Highway_Oregon-100x100.jpg "Citizen Science Detection and Reporting of Invasive Plants Workshop")
Citizen Science Detection and Reporting of Invasive Plants Workshop
Calling all outdoor explorers! Here is a terrific opportunity to engage in citizen science to help us identify and report invasive weeds in the Mt. Hood National Forest. Your interest in exploring natural areas and observational […]
June Invasive Weed of the Month: Policeman’s Helmet
Policeman’s helmet (Impatiens glandulifera) is an invasive annual which threatens streams and rivers throughout the Pacific Northwest. In Oregon it is designated as a Class B invasive weed. It was introduced as an ornamental plant originally […]
May Invasive Weed of the Month: Orange Hawkweed
Orange hawkweed (Hieracium aurantiacum) is a new invasive weed in Clackamas County and, with your help, our team plans to keep it from becoming a common problem for landowners! A member of the sunflower family, orange […]
It’s Oregon Invasive Weed Awareness Week!
May 14-20 has been declared Oregon Invasive Weed Awareness Week! Take the opportunity this week to reflect on the invasive weeds impacting Oregon and begin taking steps to combat these aggressive and harmful invaders. What Are […]
April Invasive Weed of the Month: Garlic Mustard
Garlic mustard (Alliaria petiolata) is an increasingly invasive weed in our community. Native to central and western Europe, this fast-growing plant commonly invades sites such as parks, trails, roadsides, and streamsides. April is a great time […]
It’s National Invasive Species Awareness Week!
National Invasive Species Awareness Week (February 27 -March 3, 2017) kicks off today! Events highlighting efforts to prevent or slow the spread of invasive species will take place across the country. Invasive weeds and pests are […]
