Hi Mike,

Compare your weed with Calyptocarpus vialis.

Here is a link that might be useful: {{gwi:1340109}}

What's the "grass-like" plant growing with the weed? Looks similar to monkey-grass. We have it in our gardens and it's very difficult to get rid of. My wife calls it cocoa-grass, but I've been unable to find anything under that name. Thanks.

Monkey grass is also called liriope. It can be really nice. I think that's what's in the picture.