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Cirsium arvense; Californian Thistle   

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Cirsium arvense
Cirsium arvense
Californian Thistle
Photographer: Steve Matson

ID: 0000 0000 0904 0554 (2004-09-24)

Copyright © 2004 Steve Matson

  • date of photo  Sep 7, 2003
  • date collected  Sep 6, 2003
  • latitude 39.16440   longitude -120.23870     View on Google Maps.
  • this photo depicts a plant that was cultivated or collected in the wild
  • photo location   Matson Photo Lab;7660 North Ave. Kings Beach, Placer Co. CA
  • plant's place of origin   Alpine Meadows ski area, n.w. of Tahoe City; weed at base of Kangaroo ski run; elev. 6,909 ft. (Placer County, California, US)
  • family Asteraceae
  • plant community   disturded site, ski run; within mixed coniferous forest
  • notes   specimen collected by Steve Matson #957 on 6 September 2003: phyllary detail
  • camera   Canon EOS D60 with MP-E 65mm macro lens
  • contributor's ID #  C:Botany ImagesAsteraceaeCirsiumarvense6-00063_RJ.jpg
  • photo category: Plant - annual/perennial

  • common names   Californian Thistle, Canada Thistle, Canadian Thistle, Creeping Thistle, Field Thistle (ITIS )
  • Look for Jepson Manual treatments, maps (University & Jepson Herbaria)
  • View Calflora record for Cirsium arvense
  • View all photos in CalPhotos of Cirsium arvense
  • Check Google Images for Cirsium arvense

  • The photographer's identification Cirsium arvense has not been reviewed. Click here to review or comment on the identification.

    Using this photo   The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2004 Steve Matson. For other uses, or if you have questions, contact Steve Matson ssmat[AT] (Replace the [AT] with the @ symbol before sending an email.)


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