ID tall yellow flower perenial

Discussion in 'Plants: Identification' started by blackthumb, Jun 30, 2006.

  1. blackthumb

    blackthumb Member

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    Hi all
    I am trying to identify a perenial growing in my garden.
    I started from seed last year.
    Currently the plant is 4.5 ft tall and may reach 6 ft.
    It is near a fence and crowded so height is forced a bit
    Photos attached:
    The flower is 2.5 " across with four petals and long stamens
    It's also wilted - pardon me please
    The top has multiple flower pods They split open leaving the 4 green parts hanging below the flower The flowers open in morning full sun
    The stem has rough dark colored hairs or barbs
    I have searched all the books I have and am unable to find anything close.
    Your help will be appreciated
     

    Attached Files:

  2. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Oenothera
     
  3. Ron B

    Ron B Paragon of Plants 10 Years

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    Showy evening primrose (Oenothera glazioviana), a cosmopolitan weed. It dies after flowering. The reddish hairs visible in your middle picture are diagnostic for this species.
     
  4. blackthumb

    blackthumb Member

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    I agree that it is Oenothera
    Common name seems to be Yellow Evening Primrose
    I was wrong on first post - flowers open in the evening
     
  5. Ron B

    Ron B Paragon of Plants 10 Years

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    >Common name seems to be Yellow Evening Primrose<

    Not really. Others are prevalent for this one in particular. Search using botanical name I provided, as a phrase. Google, for instance, has pages and pages on this common plant, frequently asked about on garden forums.

    "Put into European commerce in 1860, this is a hybrid of uncertain origin--most likely E. elata ssp. Hookeri x E. biennis. Some say it was introduced from Texas to England via seeds in 1858. It is Seattle's most common EVENING-PRIMROSE, both in gardens and wild" - Jacobson, Wild Plants of Greater Seattle
     

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