The NWF Guide to Trees is a comprehensive and authoritative app that provides users with a wealth of information about 708 types of trees found in North America. With nearly 4,000+ photographs and detailed text descriptions, this app is a valuable tool for tree enthusiasts and nature lovers alike.

One of the standout features of this app is its robust search functions, which allow users to search for tree species by name, either by typing or using verbal search systems. Additionally, users can organize species alphabetically or taxonomically, making it easy to find the information they need.

The app also offers various search filters, including region, leaf or needle shape and arrangement, bark type, color, flower and fruit type, and color. Users can combine these filters to narrow down their search results and find the exact tree they are looking for.

Once a tree species is selected, users can open text sections for more detailed information and enlarge photos for better identification in the field. The app also allows users to take notes and upload photos, making it a convenient tool for keeping a digital journal of observations.

Each species account in the app provides a detailed description with identification details, habitat description, range information, and a discussion about the species' history, habitat, flower, leaf types, fruit, and other notable characteristics. The app also includes photos of similar species with links to their respective accounts, as well as additional information for every species.

The NWF Guide to Trees is part of a series of nature guide apps by the National Wildlife Federation, which includes guides for birds, mammals, reptiles, amphibians, butterflies, insects and spiders, and mushrooms. Whether you're a seasoned tree expert or just starting to explore the world of trees, this app is a valuable resource for learning and identifying trees in North America.