Which tree has leaves most resembling a heart?

I agree with the either the bleeding heart (dicentra) or the redbud tree. It really depends on what you are specifically looking for. The bleeding heart it is a plant who's leaves are not leaf shaped but the flowers do look exactly like hearts. The redbud is a tree who's leaf's are shaped like hearts and has a very appealing pink color to it when it is in bloom. No matter what you pick, I don't think you can go wrong!!!