Covers the history of yellow starthistle (Centaurea solstitialis L.) invasion of the Pacific Northwest and describes current infestation levels in Oregon and Washington. Provides basic information regarding yellow starthistle ecology, including descriptions of habitat, seed production, seed dispersal, germination and viability, seedlings, rosettes, and adults. Discusses yellow starthistle management strategies, including prevention, containment, and chemical, mechanical, and biological control. Includes sources for further information.
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