Over to the left, you'll see leaves from three different types of oak trees. The Pin Oak, Quercus palustris, is found in the northern part of the U.S. and southern Canada. These trees are found in lowland areas with moderate shading. It's leaves are usually 3" to 4" and 5-lobed with a wedge-shaped base. The Jack Oak, Quercus ellipsoidalis, has dark green leaves and can be seen on untidy-looking trees. The Jack Oak is found on higher ground and the lower branches are usually dead. Looking at the leaf from the Scarlet Oak, Quercus coccinea, you will finds a thin, delicate blade with lobes sometimes almost enclosing oval spaces. The mid-rib of the leaf is yellow. Also, the Scarlet Oak trees grow in sandy or areas with gravel on the ground.

As we continue and look over to the right, you'll see two leaves from the Black Walnut, Juglans nigra, and the Butternut White Walnut, Juglans cinerea. When the leaves of the plant are arrange at opposite sides of the branch, such as these, they are called pinnate compound leaves. (for more info, see Types of Leaves) The Black Walnut somtimes has the end leaflet missing, but all the side leaflets taper continuously so the sides are not parallel at any point. This means that the leaflets don't stick out straight, are but angle These trees are found on high ground over a vast majority of the United States. The Butternut White Walnut will have the top leaflet present and the leaflets in the mid-section are parallel.