Another question. What do I call her when referring to her in general conversation? Is it permissible to just call her "my cousin"? Or "My cousin's daughter"? I think most people would give a weird look if I said, "My first cousin, once removed, who lives in California ... ." We Americans aren't very big on those extended family connections.
I call my cousins, cousins once removed and second cousins all just cousins. Sometimes someone will comment about an age difference, then I'll explain.