Euphorbia terracina

Here's a weed that's easy to pull and one where you might feel that an investment of time now will have a real preventive impact. The weed is Euphorbia terracina (Geraldton carnation weed, false caper), and it's just getting established nearby. Early prevention could make a difference, so exterminate on sight.

Pulled by the roots.  There is an irritating milky sap that is best avoided by using gloves.

There's an informative presentation at http://www.cal-ipc.org/symposia/archive/pdf/2006/EDBrigham.pdf