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OK, I've got the weed shown here all in my yard, and no one can tell me what it is or how to kill it.

I've been trying to find out what it is for years, and today I thought, "I bet there's a gardening forum on StackExchange!" Yeap!

So, please help me!

What is this and how do I get rid of it?

Pic 1 (Click >>HERE<< for a full sized version)

Pic 2 (Click >>HERE<< for a full sized version)

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4 Answers

To get rid of the weed you could use weed killer spray that can be found in most home improvement stores, like Roundup, or find remedies using common household products. This video shows you How to Make Vinegar Weed Killer using dish soap, spray bottle, spoon, and vinegar (acidity of 5% or more). It's a spot treatment so be careful when spraying around plants and grass that you want to keep. Hope this helps!

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Making my own week killer. LOL Love that one! –  jp2code Nov 7 '12 at 22:04
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It's Euphorbia maculata (or a closely related species), commonly known as Prostrate Spurge or Spotted Spurge. More images from Google here.

It forms a tap root, so it's fairly easy to control by hand; my technique is to find all the branches radiating from one central stem, them grasp the stem just below the branching point and pull straight up. I've also found that it responds well to Roundup, if you don't mind using weedkillers. And just yesterday I used a flame weeder on some, which is extremely effective.

Since it can be confused with Purslane (Portulaca oleracea), here's a picture of the two of them together for comparison, with the Spurge on the left and Purslane on the right.

Spotted Spurge vs. Purslane

The leaves on the Purslane are paddle-shaped, larger and they are clustered together at the end of the stems. On the Spurge, they're oval in shape and are spaced evenly on the stem. The Spurge's leaves are a darker green than those of the Purslane, and they can have an even darker spot in the middle, hence the common name of Spotted Spurge.

Another way to distinguish is to break the stem: the Spurge will have a milky white sap (careful, it can irritate your skin) that will bead at the broken end of the stem, while the Purslane will have a green, almost clear sap.

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A flame weeder? Are you setting fire to your lawn? –  jp2code Jul 17 '12 at 13:43
    
@jp2code: I mostly find this stuff in my vegetable patch where I've got bare dirt between rows (except for the weeds, of course :), so using a flame weeder won't damage anything important. –  Niall C. Jul 17 '12 at 14:18
    
I'm definitely trying the Roundup! Anything specific to get this Euphorbia Maculata? (what a mouthful) We don't water our lawn, so when the grass dies, this stuff takes over in the open ground so that new grass has no chance to come back. –  jp2code Jul 17 '12 at 14:58
    
If you want to keep the bermuda grass you could try a broadleaf weed killer first to see if that will kill the spurge without affecting the bermuda grass. –  brian buck Jul 17 '12 at 18:50
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This is an amazingly good identification answer. You have included a full list of identifying characteristics and a side by side photo. Awesome. If only more ID answers were more like this. –  Eric Nitardy Aug 14 '12 at 17:52
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If you can put together a sufficiently large collection of vegetarians, they will take care of it.

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What, like stems and all or am I supposed to pick all those little leaves off? –  jp2code Jul 18 '12 at 16:38
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It depends on which plant you are referring to in the pictures. The first picture predominantly features bermuda grass. The second picture appears to be purslane.

Glyphosate (Roundup) will kill purslane. My experience is that pretty much nothing kills bermuda grass. I heard someone once say to get rid of bermuda grass you need to move. Then move again :)

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It's very similar to Euphorbia Maculata, but the leaves on purslane are larger towards the end of the branches, and also form clusters there. –  Niall C. Jul 17 '12 at 4:04
    
LOL Brian, I want to keep the Bermuda grass. It is hardy, requires no watering, and only grows to about 4-inches tall. I want to rid my life of the weed in that first picture that seems to be choking out the Bermuda grass. :) –  jp2code Jul 17 '12 at 13:39
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@jp2code - This is probably obvious... Roundup will kill nearly everything, including a lot of your Bermuda grass. –  Ed Staub Jul 17 '12 at 18:23
    
I don't want to kill the Bermuda grass. Dirt for the front yard may work in Arizona, but it rains too much in East Texas. –  jp2code Jul 17 '12 at 19:48
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