i have a tree in our backyard which grew out of a seed brought in by some birds. When it started growing i left it not know what that plant is. Now after a few years it has grown to a sizeable tree and I do not want to wait any longer to identify it. During summer it produces tiny creamy white flowers in a bunch and produces the fruits shown in the picture. The fruits do not grow any bigger than what is shown. I have seen similar trees behind walls while driving on the highway. Is the tree worth keeping or is it just a garden variety wild tree that needs to be cut down before it gets too big?