What's the difference between an oak and a maple, a spruce and a pine, an ash and a sycamore? With this portable guide, you'll be able to distinguish between more than 100 common American trees. Take it along on walks and hikes for quick, accurate reference to brief, nontechnical descriptions and hundreds of illustrations. Each page features a map showing the tree's geographical range, and each illustration includes a background scale to help determine size. Leaves, needles, cones, flowers, fruit, and other details are clearly noted. Most trees are depicted in their full summer glory, but a key to identifying trees in winter is included, along with a helpful Index.