Small Mudflat Plant

jekeesl (south-central Arkansas)(7b)August 9, 2014

These tiny mudflat plants were in heavy shade. They were somewhat upright, with opposite leaves and flowers pin-sized in leaf axils. Stems were grooved on one side. The flowers had tubular bases, four calyxes, and four alternating pink petals. Flowers were only about 2 mm long.

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lycopus(z5 NY)

Perhaps another Ludwegia.

    Bookmark   August 9, 2014 at 8:43PM
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jekeesl (south-central Arkansas)(7b)

Thanks lycopus. I thought it was Ludwigia repens, but the petals were only 0.5 mm long. The descriptions I found said petals should be longer, and yellow instead of pink. You should see those flowers under the microscope - they're gorgeous.

    Bookmark   August 9, 2014 at 10:08PM
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jekeesl (south-central Arkansas)(7b)

Well, I ran this one down. It is most likely Oldenlandia boscii (Bosc's mille grains). Most of the O. boscii photos on the Internet show different species, but the link below provides ID support. I also got a better photo for comparison.

Here is a link that might be useful: Oldenlandia boscii

    Bookmark   August 10, 2014 at 10:24PM
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lycopus(z5 NY)

Didn't know that one. The 4-merous flowers fits with the Rubiaceae.

    Bookmark   August 10, 2014 at 11:24PM
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