Weed Identification Resources

Invasive Weeds of Eastern Washington
Washington State University Extension Manual
Weeds of Eastern WA WSU Extension Manual[...]
Adobe Acrobat document [2.4 MB]

Twenty Weeds to Know in Douglas County
A pocket sized booklet to help producers and land managers identify known or potential weed species and to present options for control and/or eradication of non-desirable plant species. Produced by South Douglas Conservation District
Twenty Weeds to Know in Douglas County.p[...]
Adobe Acrobat document [3.3 MB]

Noxious Weeds that Harm Washington State, Eastern WA Field Guide
PDF version of a 68 page, pocket-size field guide to many of the troublesome noxious weeds of Eastern Washington. Photos, impacts, and methods of control are listed for each weed. This publication also includes a brief introduction that explains how weeds spread, weed laws, and landowner responsibilities. 68 pages, 3 1/2" x 5 1/5".
Produced by the Washington State Noxious Weed Control Board
Eastern WA fieldguide_NWCB.pdf
Adobe Acrobat document [2.0 MB]

Weeds of the West
This extensive, easy-to-use guide contains more than 900 color photographs showing the early growth stages, mature plants and features for positive identification of each weed discussed. Descriptions, habitats and characteristics of each plant are also in this 650 page book. Identification, habitats and characteristics of 350 species from western U.S.Published by the Western Society of Weed Science and cosponsored by Cooperative Extension of the Western States.
Weeds of the West (PDF format).pdf
Adobe Acrobat document [53.2 MB]