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Identification of Knapweeds and Starthistles in the PNW
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Identification of Knapweeds and Starthistles in the PNW

Washington State University Extension
PNW (Series), PNW0432, Washington State University Extension
06/2000
Handle:
https://hdl.handle.net/2376/7152
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Abstract

An identification key and detailed line drawings of bracts, seeds, heads, rosettes, and plant shape offer an important tool for identifying these invasive plants. About 20 species of Centaurea have naturalized in western North America. 26 pages.

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