Tree Identification Field Guide. Our il.rated, step-by-step process makes it easy to identify a tree simply by the kinds of leaves it produces. Begin identifying your tree by choosing the appropriate region below..To HOME - What Tree is It? Identify By Leaf Banner Read about them; know what they look like before you touch unknown trees, shrubs or vines!" Needle-like .This small program for tree identification will get you soon lead to success. sweetgum leaf e.g. birch leaf leaf withebeam spanish chestnut single leaf .