
"Cirsium arvense" is a species of "Cirsium", native throughout Europe and northern Asia, and widely introduced elsewhere. The standard English name in its native area is Creeping Thistle.
Similar species: Asterales
By maddypothier
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Uploaded Apr 16, 2015. Captured Apr 16, 2015 13:17 in Grand Canyon National Park, Village Loop Drive, Grand Canyon Village, AZ 86023, USA.
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http://www.invasiveplantatlas.org/subject.html?sub=2792
http://www.co.stevens.wa.us/weedboard/htm_weed/thistle_comparison.htm
http://www.invasiveplantatlas.org/park.html?id=GRCA Posted 10 years ago