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What Tree Is That?

Tree Identification Field Guide

Our illustrated, step-by-step process makes it easy to identify a tree simply by the kinds of leaves it produces. Begin identifying your tree by choosing the appropriate region below.

Choose Your Region

Rocky Mountains and Westward East of the Rocky Mountains

What Tree is That? Pocket Field Guides

5 stars

One of the best, pocket-sized tree identification manuals. Steve Nix,

  • Step-by-step approach
  • Full Color Botanical Illustrations
  • Identify common trees in your region or North America
  • Great for everyone from young students to professional arborists
  • $5 to $14.95
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Wholesale Field Guides

Great for:

  • Nature Centers
  • Bookstores
  • Garden Shops

Additional Resource

Tree City USA Bulletin: What Tree is That—and Why?

What Tree Is That?™ was made possible through the generosity of John C. Negus and Family and other Arbor Day Foundation members.