What kind of tree is this?

Date Photo Taken: 05/01/2012
Location: Duluth, Georgia
Posted By: dcarter

Notes:

It is a ‘volunteer’ in our yard & has multiple trunks & is now over 15 feet tall. Grows very rapidly. We’ve cut it back to the ground a couple of times but it grows back quickly. It has two distinctly different leaves. One has 5 lobes approximately 6″ long and 5″ wide. The other leaves are oblong and at maturity are about 7″ long and 5″ wide. Both types of leaves have serrated edges. I’ve never noticed blooms on it but in the Spring it is covered in red berries which turn black. Birds love ‘em