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Spotted Knapweed - Centaurea biebersteinii
Family: Asteraceae

This plant has been filmed but is not available on the web.

Description

Spotted Knapweed is a biennial plant that has purplish colored flowers. Its leaves are alternate, and covered with translucent dots ... thus, giving it its name. This plant does not spread via runners, but instead only by seeds.

Similar species to spotted knapweed include canada thistle, diffuse knapweed, russian knapweed and yellow starthistle.

Interesting facts

Spotted Knapweed was introduced in 1893 from Europe into Victoria, BC. Since then it has spread across most of the united states and is reason for great concern. It is particularly troublesome in the Northwestern United States and British Columbia.

Links to more information


Website, video, and graphics by Rob Nelson
For more information on this plant or management please contact US Army Corp of Engineers


Spotted Knapweed Video


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