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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Details
Title
Purple and Iberian Starthistle
Creators
Cindy Talbott. Roche (Author)
Ben F. Roche (Author)
Academic Unit
Publications, WSU Extension
Series
PNW (Series); PNW0350
Publisher
Washington State University Extension; Pullman, Washington
Identifiers
99900501715701842
Copyright
In copyright ; openAccess ; http://rightsstatements.org/vocab/InC/1.0/ ; http://purl.org/eprint/accessRights/OpenAccess