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

Oregon – Problem Thistles of Oregon

Problem thistles in Oregon, color photos and descriptions of: Yellow starthistle, bull thistle, canada thistle, italian thistle, milk thistle, purple starthistle, scotch thistle, distaff thistle and musk thistle

More Information

Oregon State University Extension Service

Oregon Department of Agriculture
Noxious Weed Control Program
635 Capitol St., N.E.
Salem, OR 97310
(503) 986-4621