Hawthorns are attractive deciduous trees that consists of hundreds of varieties. Although most mature hawthorns grow to heights of 15- 30 ft, some varieties can be used as shrubs; while other ones can reach heights of 45 ft.  A Hawthorn is distinguished by its sharp, woody thorns and dark green serrated leaves. The tree is covered with clusters of flowers of pink or white (depending on the variety) in mid-spring. Following the flowers is a small, red or less commonly yellow apple-like fruit, often called thorn apples or haws, ripen in autumn. Crataegus aestivalis, the eastern mayhaw, and C. opaca, the western mayhaw fruits are commonly used for jellies in the south. Fall colors are usually yellow but there are some varieties turn brilliant a shade of orange-bronze in autumn.