This document contains a leaf project by Carla Bridges identifying and describing the key features of 12 different tree species. For each tree, the scientific name, type of leaves, location observed, and date are provided. The trees studied include Red Birch, Arbor Vitae, Juneberry, Black Walnut, Silver Maple, Flowering Dogwood, Sycamore Maple, Bradford Pear, Southern Magnolia, and Black Maple observed on the USI campus and in Enfield, Illinois between October 2009 and 2017.