There has ben this tree(actually a few growing together) growing behind my shed for years. Has very nice pinkish or white flowers in the summer and the tree has been hard to id so far. The tree is about 10 feet tall and hasn't grown taller for years. Pictures will show leaves, multiple trunks coming out of the ground, and the many saplings that are growing around the base of the trees. Bark is strong and doesn't peel easy. Leaves are palmate with usually 5 small lobes and some smaller lobes in between that on some of the leaves. Some leaves only appear to have 3 lobes.

http://i1067.photobucket.com/albums/u431/kunak1/SU1BRzAxMjUuanBn.jpg

base of trees:
http://i1067.photobucket.com/albums/u431/kunak1/SU1BRzAxMjUuanBn.jpg

http://i1067.photobucket.com/albums/u431/kunak1/SU1BRzAxMzAuanBn.jpg

saplings
http://i1067.photobucket.com/albums/u431/kunak1/SU1BRzAxMzEuanBn-1.jpg