Tree leaf identification charts are available through About.com, Discover Life's "Time Machine", as mobile phone applications and through many state Extension agencies. According to About.com, readers can use these charts allow to select a type of tree leaf, then narrow down information about the leaf to identify the tree.
Multiple applications are also available for smart phones that help users identify tree leaves using photographs. These applications are available through iTunes or Google Play, and include Tree Book and PlantNet Plant Identification. These programs allow individuals to access the Internet using their phone, then identify leaves of trees while in the field.