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Scotch Thistle

Scotch thistle was introduced to the United States in the 1800s as an ornamental plant from the Mediterranean region. It is a noxious weed in Idaho, Oregon, and Washington. Scotch thistle can form dense, virtually impenetrable stands in low- to high-fertility soils. This publication provides information for identification, management, and control.

PNW 569    Published September 2003    4 pages
March 2016


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