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Purple and Iberian Starthistle
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Purple and Iberian Starthistle

Cindy Talbott. Roche and Ben F. Roche
PNW (Series), PNW0350, Washington State University Extension
04/1998
Handle:
https://hdl.handle.net/2376/7134
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Abstract

These noxious weeds infest range, pasture, and roadsides in the Northwest. They are unpalatable to grazing animals. Sharp-spined masses degrade natural areas and parks. In Washington, populations of purple starthistle are limited to Asotin and Island counties. Photos of spiny, purple flower clusters, rosette, and infected range. chemical and cultural controls discussed. 4 pages.

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