Harney County’s Most Wanted Weed List–Updated

Posted on 04.10.23 by Harney SWCD

Harney County Weed Classification

Noxious weed for the purpose of this policy shall be rated “A”, “B”, or “C”.

“A” Pest– A weed of known economic importance known to occur in the county in small enough infestations to make eradication practicable or not known to occur, but it’s status in the surrounding counties makes future occurrence seem imminent.

*Species not yet known to occur in the county

Action: Infestations are subject to eradication where found with possible County assistance when
funds are available.

African rue	Peganum harmala
Black Henbane	Hyoscyamus niger
Diffuse knapweed	Centaurea diffusa
Hoary Alyssum	Berteroa incana
Leafy spurge	Euphorbia esula
Musk thistle	Carduus nutans
Orange hawkweed	Hieracium aurantiacum
Pheasant eye	Adonis annua
Purple loosestrife	Lythrum salicaria
Rush skeletonweed	Chondrilla juncea
Salt cedar	Tamarix ramosissima
Scotch broom	Cytisus scoparius
Spotted knapweed	Centaurea maculosa
Squarrose knapweed	Centaurea virgata
Tansy ragwort	Senecio jacobaea
Yellow starthistle	Centaurea solstitialis
Yellow toadflax	Linaria vulgaris

“B” Pest– A weed of known economic importance and of limited distribution in the county and is subject to
intensive control or eradication where feasible at the county level.
Action: Infestations are handled at County discretion with possible County assistance when funds
are available.

Dalmatian toadflax	Linaria dalmatica
Houndstongue	Cynoglossum officinale
Mediterranean sage	Salvia aethiopis
Perennial pepperweed	Lepidium latifolium
Puncture vine	Tribulus terrestris
Russian knapweed	Acroptilon repens
Scotch thistle	Onopordum acanthium
Bull Thistle	Cirsium vulgare
Canada thistle	Cirsium arvense

“C” Pest- A weed of known economic importance and of general distribution that is subject to control,
intensive control, or eradication as local conditions warrant.
Action: Infestations handled at owner’s discretion.

Halogeton	Halogeton spp.
Klamath weed	Hypericum perforatum
Medusahead rye	Taeniatherum caput-medusae
Morning glory	Convolvulus arvensis
White top	Cardaria draba

Website Accessibility Statement

Harney Soil & Water Conservation District (the "District") is committed to ensuring that its services are accessible to all members of the public. As part of this commitment, the District strives to provide an accessible website compatible with the Web Content Accessibility Guidelines (WCAG) version 2.1, AA, and commercial screen reading software. Features of the website are created to allow individuals with vision and other impairments to understand and use the website to the same degree as someone without disabilities.

If you need any special assistance or accommodations:

Contact our compliance support team via telephone at: (888) 765-1970

Ongoing Compliance Information

Compliance Coordinator

The District has designated a Compliance Coordinator for website disability-related accommodations. The Compliance Coordinator has received training in website accessibility and updates the site in accordance with those best practices and requirements.

Compliance Procedures

The District is working to ensure all website content complies with the Americans with Disabilities Act and controlling State laws. In an ongoing effort to continually improve and remediate accessibility issues, the website is regularly scanned to ensure ongoing compliance, and timely changes are made to any inaccessible content if found.

Accessible Documents Policy

The District is committed to providing all documents hosted on the website in an accessible format or making accessible alternatives available.

Linked Documents and Third Parties

Please note that this site may link out to third-party websites that do not have accessible content. This site may also include documents provided by third parties. While we cannot control the accessibility of content provided by third parties, we are happy to assist any member of the public with reading and accessing content on our site.

Report a Website Accessibility Issue

We are committed to your ability to access all content, and we will respond to all requests in a timely manner. If you need assistance or accommodations while accessing content on this website, please contact our Compliance Coordinator via the form below: