Plant ID forum: Mystery Weed

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Jun 6, 2012 6:58 AM CST
Hi! I am hoping that someone can ID this weed, which has been propagating my backyard this year. It grows in upright clusters of stalks. The leaves are smooth and sessile, ovoid-heart-shaped, and partially surround the squarish stem. It bears small star-shaped purple flowers at the juncture of stem and leaves. It is not prostrate. Leaves range from very small on new stalks but are an inch or more in diameter on the larger, sturdy stalks.It is not Creeping Charlie, Speedwell or Henbit. I hope that someone here knows what it is. I have a Facebook album with additional photos of this weed, which are here:

Thumb of 2012-06-06/FEisner/f81cd2
[Last edited by FEisner - Jun 6, 2012 7:00 AM (+)]
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Name: Janet Super Sleuth
Near Lincoln UK
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Jun 6, 2012 7:23 AM CST
Francine, Welcome!

Could you please give your location, it can often help.
Name: Monica
Texas Gulf Coast (Zone 9b)
Sweat Weather, Not Sweater Weather
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Jun 6, 2012 7:57 AM CST
Hi Francine,

I believe it's Specularia perfoliata, synonym Triodanis perfoliata, Venus' Looking Glass. Native throughout most of U.S.
Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Celebrating Gardening: 2015
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Jun 6, 2012 8:01 AM CST


It's a species of Venus' Looking Glass, most likely Triodanis perfoliata.

Jun 6, 2012 8:36 AM CST
That's it!!!! Thank you, guys. BTW I am on Long Island, in Nassau County (NY). Lovey dubby

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