How to obtain jungle wood in Minecraft Xbox 360?

I'm on mine craft on the Xbox 360 and i want to know if it is possible to obtain jungle wood on my game save. Iv been playing this save for quite a long time now and when TU13 came out no jungle wood trees spawn on my game. I noticed that the grass in one place on my map had gone a much more greener green. I'v entered my seed in again to start up a new save seeing if everything is the same and it's not. Where I'v already seen the greener grass on my original there are jungle trees there now.

Is there a way of getting jungle wood now or will I have to start another game save.

If you don't care about achievements you can get it in creative mode.

Otherwise, no. I wonder though if you could make trees in creative mode and place leaves on them. If that would produce jungle tree seeds. Worth a try.