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Grand Canyon Beautiful Cacti over the grand canyon Geotagged,Spring,United States,cacti,cactus,colorful,grand canyon Click/tap to enlarge Country intro

    comments (1)

  1. I believe this is actually Canada thistle, a very nasty non-native invasive throughout North America.
    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

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"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
Species identified by travismorhardt
View maddypothier's profile

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.