Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

NWF Guide to Trees 스크린 샷

iPad

iPhone

About NWF Guide to Trees

This authoritative and easy-to-use guide features 708 types of trees found in North America, with nearly 4,000+ photographs, text descriptions to help identify tree species, and robust search functions to aid in species identification.

Utilizing the latest iOS technologies, you can:

• Search by name (common and scientific) using either keyboard or verbal search systems; type or speak all or part of a mushroom’s name to search for its detailed account.
• Organize species alphabetically or taxonomically.
• Search by region, leaf or needle shape and arrangement, bark type, color, flower and fruit type, color—or any combination.
• Touch to open any or all of the text sections and to enlarge photos to aide with identification in the field.
• Take notes and upload photos to keep a digital journal of your observations and share them with family, friends, and our growing online community.  
Each species account contains:

• description with identification details
• habitat description
• range information
• discussion about the species’ history, habitat, flower, leaf types, fruit and other notable characteristics
• taxonomic Order information
• photos of similar species with links to those species’ accounts
• links to additional information for every species

Other National Wildlife Federation Nature Guide apps in this series include:

Wildlife Guides
• National Wildlife Federation Guide to Birds
• National Wildlife Federation Guide to Mammals
• National Wildlife Federation Guide to Reptiles
• National Wildlife Federation Guide to Amphibians
• National Wildlife Federation Guide to Butterflies
• National Wildlife Federation Guide to Insects and Spiders
• National Wildlife Federation Guide to Mushrooms

Garden Guides
• National Wildlife Federation Guide to Herbs
• National Wildlife Federation Guide to Vegetables