3/7/12 – Featured in the "NATURE’S PAINTBRUSH Group.
3/12/12 – Featured in the FEELIN’ GOOD Group.
3/23/12 – Featured in the WILDFLOWERS OF NORTH AMERICA Group.
3/23/12 – Featured in THE WORLD AS WE SEE IT Group.
3/23/12 – Featured in the WILDFLOWERS OF NORTH AMERICA Group.

Canadian Thistle (Cirsium arvense) is a noxious weed, the bane of all gardens, but it produces beautiful flowers. These thistles were growing in Great Northern Flats, across the river from Glacier National Park.

“The species is widely considered a weed even where it is native, for example being designated an “injurious weed” in the United Kingdom under the Weeds Act 1959. It is also a serious invasive species in many additional regions where it has been introduced, usually accidentally as a contaminant in cereal crop seeds. It is cited as a noxious weed in several countries; for example Australia, Brazil, Canada, Ireland, New Zealand, and the United States. Many countries regulate this plant, or its parts (i.e., seed) as a contaminant of other imported products such as grains for consumption or seeds for propagation. In Canada, Cirsium arvense is classified as a primary noxious weed seed in the Weed Seeds Order 2005 which applies to Canada’s Seeds Regulations."

“Like other Cirsium species, the roots are edible, though rarely used, not least due to their propensity to induce flatulence in some people. The taproot is considered the most nutritious. The leaves are also edible, though the spines make their preparation for food too tedious to be worth eating. The stalks, however, are also edible and more easily de-spined.” [from the wikipedian article]

Photo taken September, 2011, with a Kodak EasyShare Z712 IS camera in the Northfork Valley of Northwestern Montana (USA).
ISOSpeedRatings – 64
ShutterSpeedValue – 1/203 seconds
ApertureValue – F 3.25
FocalLength – 9.36 mm
SceneCaptureType – Standard


  • Jaclyn Hughes
    Jaclyn Hughesover 2 years ago

    fabulous capture Kat!

  • Larry Trupp
    Larry Truppover 2 years ago

    Wonderful capture

  • Bunny Clarke
    Bunny Clarkeover 2 years ago

    Gorgeous capture. We have Russian Thistle here. They are Huge!

  • kalaryder
    kalaryderover 2 years ago

    Great description and a lovely detailed capture

  • Vickie Emms
    Vickie Emmsover 2 years ago

    oooh this is beautiful Kathleen, love the vibrant purple

  • Vickie Emms
    Vickie Emmsover 2 years ago

    be sure to enter the challenge for great prizes!!

  • Thank you! I just entered.

    – rocamiadesign

  • Aase
    Aaseover 2 years ago

    Wonderful capture and presentation!

  • Sprezzatura
    Sprezzaturaover 2 years ago

    Hi Kathleen, I have always thought these make a wonderful subject. Good one. Cat

  • Thank you, Cat!

    – rocamiadesign

  • Larry Trupp
    Larry Truppover 2 years ago

    7 March 2012…Amazing work

  • Thank you very much, Larry!

    – rocamiadesign

  • Thank you very much, Larry!

    – rocamiadesign

  • lacitrouille
    lacitrouilleover 2 years ago

    Gorgeous colours and dreamy ambience.

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