hurtful styles

Discussion in 'Plants and Biodiversity Stumpers' started by tipularia, Apr 18, 2007.

  1. tipularia

    tipularia Well-Known Member 10 Years

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    What is this South American invader?
     

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    tipularia, Apr 18, 2007
    #1
  2. J.Onstott

    J.Onstott Active Member

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    Is it in the carrot family Apiaceae
    ?
     
    J.Onstott, Apr 19, 2007
    #2
  3. David in L A

    David in L A Active Member 10 Years

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    Asteraceae?
     
    David in L A, Apr 19, 2007
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  4. TonyR

    TonyR Active Member

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    Soliva sessilis
     
    TonyR, Apr 19, 2007
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  5. tipularia

    tipularia Well-Known Member 10 Years

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    Close enough TonyR!
    lawn burweed, Jo-Jo weed
    The achenes are winged with a spinelike style.
    The Illustrated Flora of North Central Texas, 1999, recognizes S. pterosperma as a separate species from S. sessilis. USDA lists it as S. sessilis.
     
    tipularia, Apr 19, 2007
    #5

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