Projects & Resources

• Encycloweedia
• Noxious Times
• Noxious Weed Information Project
• Purple Loosestrife Project
• Yellow Starthistle Mapping Project

Sub Menu

• Home
• General Info
• Aquatic Species
• Terrestrial Species
• Regional
• Restoration
• Education K-12
• Invertebrates
• Out of State

Weed Education: Out of State

Pacific Northwest – Identification of Knapweeds and Thistles

Key to knapweed and starthistle species in the Pacific Northwest: Contains black & white drawings and species descriptions.

More Information

PNW bulletins availabe from cooperative extension offices in county seats and from publication offices at the land-grant universities in Idaho, Oregon and Washington.