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  1. #1
    Join Date
    Apr 2010
    Location
    Russellville, Arkansas USA
    Posts
    15

    5 petal yellow flower???

    Could someone please help with the ID of this wildflower. It may be a variety of Buttercup but the small round stamens look unusual to me.
    Attached Images Attached Images

  2. #2
    Join Date
    Aug 2009
    Location
    South Wales. U.K.
    Posts
    150
    I am so sorry BonaDea that I have not managed to id this yellow flower.
    Your pic is so clear. I did try very hard. But with no success!
    I can tell you that it is not related to any plant in the buttercup family... Ranunculaceae.

  3. #3
    Join Date
    Apr 2010
    Location
    Russellville, Arkansas USA
    Posts
    15
    Thanks Silver surfer. I took your advise about the forum website. Will see what happens. Do you think it might be in the Cinquefoil group?

  4. #4
    Join Date
    Aug 2009
    Location
    South Wales. U.K.
    Posts
    150
    Cinquefoil is in the family Rosaceae., again multiple stamens.
    The nearest I got was Primulaceae family.
    But I am not at all sure. There are bound to be plants in USA that I have never even heard of.

    http://en.wikipedia.org/wiki/Primulaceae
    Last edited by Silver surfer; 10-09-2010 at 01:50 AM.

  5. #5
    Join Date
    Aug 2009
    Location
    South Wales. U.K.
    Posts
    150
    It has been suggested by Trylch from Kiev. Ukraine, that it is a Ludwigia sp.common name water primrose! However, it is in the family Onagraceae, so I was miles out!
    I respect Trylch's vast knowledge.

    Ludwigia - Wikipedia, the free encyclopedia
    Last edited by Silver surfer; 10-09-2010 at 01:44 AM.

  6. #6
    Join Date
    Apr 2010
    Location
    Edmonton Canada
    Posts
    68
    hmmm a puzzler and this flower has 5 petals instead of 4 in the photos of the water primrose.
    had a long look too. closest I could come up with although not identical to photo...
    How about helianthemum Canadensis? (frost weed) there are also other helianthemum sp.
    wild guess from Canada.
    Karen
    Last edited by KarenZone3A; 10-10-2010 at 10:21 PM.

  7. #7
    Join Date
    Aug 2009
    Location
    South Wales. U.K.
    Posts
    150
    Helianthemum including Heliathemum Canadense have multiple stamens.

    http://www.wildflower.org/gallery/re...?id_image=3514

    http://en.wikipedia.org/wiki/Helianthemum

    Not all Ludwigia have 4 petal, there are also 5 petal ones . There are after all 75 species.

    http://www.floridasnature.com/images...andiflora).jpg

    http://www.floridasnature.com/florida_herbs_11.htm

    Google Image Result for http://www.chileflora.com/Florachilena/ImagesHigh/IMG_0975.jpg

    BonaDea's original photo does exbibit the very prominent stigma that is typical of other Onagraceae,
    Last edited by Silver surfer; 10-11-2010 at 01:08 AM.

  8. #8
    Quote Originally Posted by KarenZone3A View Post
    hmmm a puzzler and this flower has 5 petals instead of 4 in the photos of the water primrose.
    I also believe that it is Ludwigia or as commonly known as water primrose :)

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