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This appears to be a weed, as hundreds have popped up all over a backyard at a client's home. Any idea of what it is? Found in San Diego, California, USA.

  • Have you checked the yards next door for a larger version? – Wayfaring Stranger Feb 25 '17 at 20:16
  • I've not had the chance to get hands-on with the flora of California, so a bit of a gues to start the ball rolling. The family Crassulaceae would seem likely. A little more hesitantly I would suggest Crassula, Sedum and Kalenchoe as possible genera. Even if (perhaps especially if) one of these genera are correct, you wouldn't be able to get a positive ID without seeing an adult plant, preferably in flower as species can be hard to differentiate and individuals within a species quite variable. If there are large numbers cropping up, then it is likely their parent is nearby. – George of all trades Feb 25 '17 at 21:01
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This is Ice Plant (Lampranthus blandus).

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  • It certainly looks right, though it is native to South Africa. Is it known to naturalise/become invasive in California (I can't see why not)? – George of all trades Mar 1 '17 at 10:30
  • I'm not familiar with that genus at all (nor the flora of California), but looks like a possibility to me, too. It's not documented from California (calflora.org/cgi-bin/specieslist.cgi?where-genus=Lampranthus), although that's not to say it's not there. I'd highly recommend taking some of it to the herbarium at San Diego State and see what they have to say. If it really is this species and spreading readily, you might be able to help it from becoming a larger problem. – Yewge Mar 2 '17 at 0:57
  • I know that many species from Lampranthus grow like weeds here. They plant them everywhere. – jkd Mar 15 '17 at 7:27

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