odd little plant in my moss gdn

donna_midwifeOctober 23, 2007

This little creeper showed up in my Japanese garden this spring. It grew among my polytrichum which I had sown from the woods, but has spread across the other mosses, too. It has leaves like a tiny nasturtium, but split like a waterlily's. It has flowers like a watercress, white and the size of a pinhead. The leaves are about 1/2" avg.

Any ideas what it might be?

Here is a link that might be useful: odd weed

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sorry, new flickr acct -- trying again to link the pix

Here is a link that might be useful: odd weed

    Bookmark   October 23, 2007 at 2:21PM
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It looks like dollarweed.

    Bookmark   October 23, 2007 at 2:57PM
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Here's a link:

Here is a link that might be useful: Dollarweed or pennywort

    Bookmark   October 23, 2007 at 2:59PM
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Yes, it is a Hydrocotyle species.
While the link above is interesting Hydrocotyle and this
species that is plaguing your mosses may not be a weed
species but rather a local native species.
In California, where I am at, there are three native species. It is a great plant for shallow water spots.
Your best course of action to contain it is to pull it up
when it gets started as it is viny in habitat forming
runners like strawberries which root out every now and then from whence a leaf grows.
I would recommend moving some of it into a small watertight bowl with some earth that sits just below the rim and flooding it until water sits on the surface and then plant in the Hydrocotyle and sit out in full sun or partial sun. An interesting accent for a table and fairly easy to contain as it is a shallow rooting plant.

    Bookmark   October 23, 2007 at 6:04PM
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