Land Plants - invasive

Meadow Knapweed (Centaurea × moncktonii) on Jul 28, 2008

Submitter does not have a specimen

Description of specimen

scattered individual plants in the road prism.

Commentary

Dear Doug,

Thanks for reporting meadow knapweed. I will forward this report to a weed coordinator for the BLM. You are right that it should be controlled before any logging operation.

Keep the reports coming!

Tania Siemens
OSU Sea Grant/The Nature Conservancy
tania.siemens@oregonstate.edu

Tania Siemens
Aug. 13, 2008, 7:20 a.m.

Resources

Synonym: Centaurea pratensis

Key to knapweeds and starthistles in the Pacific NW

Location

In section 25, T29S, R03W, along BLM road 29-3-25. The native forest adjacent to this road is planned for clearcutting by BLM. The soil disturbance, canopy removal, and log trucks could really spread this small population far and wide.

Expert Reviewer

Tania Siemens
WISE Program Coordinator (Watershed and Invasive Species Education)
Oregon Sea Grant Extension
Oregon State University
tania.siemens@oregonstate.edu
541-914-0701

© 2025 Portland State University | Contact us for questions regarding site content