spotted knapweed

Centaurea biebersteinii

Distribution map of Centaurea biebersteinii
State(s) where reported invasive*: AZ, CA, CO, CT, DE, KY, ID, IL, MA, MD, MI, MN, MT, NC, NJ, NY, OR, PA, SD, UT, VA, WA, WI, WV, WY

*Information from Swearingen, J. 2006. WeedUS database, Alien Plant Invaders of Natural Areas. Plant Conservation Alliance, Alien Plant Working Group. http://www.invasive.org/weedus/index.html

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http://www.nps.gov/plants/alien/fact/map/cebi1.htm
Last updated: 10-Apr-2007