What is this thing, and how do I take care of it?

Some kind of grass. My wife just got this. I’d like to keep it on my desk, but I don’t know what to do with it. Do I need to put it in a bigger pot? The temporary plastic one it came in kind of looks congested, but I don’t know. What about watering?

Probably a really dumb question, but, is taking care of all grasses mostly the same?

We’re in Connecticut, but I couldn’t say if that’s where this thing came from (maybe it was imported by the store she got it from?)