Hello Innectis, I have a idea basically you would use bonemeal on a dead tree/bush (which you find in the desert) and it will turn into a Oak Sapling and then if you bonemeal again it will become a Oak Tree, This will be a good Idea if you want a Desert Lot and need some wood easily or you are in reszone and all you have on you is bonemeal and a axe and there is a dead tree/bush near you.
Screenshot of the Oak Tree in Desert
http://imageshack.us/photo/my-images/195/20121016170350.png/Regards,
Liam
