>>44454064Heracross, Aimpon and Pineco is a few I can think off that you could only get from the headbutt trees
thing is that the whole thing depend on your Trainer ID, so for you a specific tree can only give you shitmons while for someone else he could get all of the headbutt exclusives pokemons
someone did a tool to tell you which trees you should headbutt if your looking for those rare pokemon if your interested
http://tshadowknight.com/Headbutt%20Grid.htm 
