Identification: tree 2 (pinus)

Discussion in 'Gymnosperms (incl. Conifers)' started by shirdipam, Oct 26, 2012.

  1. shirdipam

    shirdipam Active Member

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    Tiruvannamalai, INDIA, but I travel a lot!
    Learning to recognise trees by their bark. These photos were taken in Yosemite National Park. I would appreciate help identifying them. Hopefully I have the right bark with it's corresponding leaf!
     

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    Last edited: Oct 29, 2012
  2. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Re: trees

    Pinus contorta subsp. murrayana.
     
  3. SusanDunlap

    SusanDunlap Active Member

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    Re: trees

    Michael, Kew does recognize this as a sub-species. Can you tell us how it is distinct from P. contorta?
     
  4. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Re: trees

    Cones that always open at maturity (instead of often being serotinous) and are yellow-buff (not orange-brown); also differences in bark (thinner, less fissured), needle anatomy, and resin chemistry.

    Distribution:
    Pinus contorta subsp. contorta: Coastal, southern Alaska south to NW California.
    Pinus contorta subsp. murrayana: Cascades, Sierra Nevada.
    Pinus contorta subsp. latifolia: Rocky Mts.
     
  5. SusanDunlap

    SusanDunlap Active Member

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    Re: trees

    thanks.
     

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