Suitable Tree for Iguana Cage?

Im looking into making a large indoor cage for an Iguana while utilizing a very natural habitat. I want to add a real tree in the cage(the pot will be beneath the floor of the cage) and I was just wondering what a safe/good tree is that I can put in there with an iguana or similar lizard that will be okay for them to eat the leaves/fruit(if they so choose) & to climb on with ease? -Thanks