Here's a nice little patch, living its best life in the crack between the asphalt and curb.
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If you zoom in on the left side, there's also some spotted spurge (Euphorbia maculata) mixed in. The spurge looks really similar to purslane from a distance, but the leaves aren't as fleshy and succulent, and have a bit of red where they connect to the stem. If you break the stem, some white sap will run out, too. Avoid the spurge, it's bad news for your tummy...