Tree Identification

What Tree Is That?

Our illustrated, step-by-step guide makes it easy to identify a tree simply by its leaves or needles.

What Tree Is That? Pocket Field Guide
This beautiful printed book will help you identify trees wherever you go.
What Tree Is That? Online
Online tree identification for common trees in the United States.
What Tree Is That? for iPhone
Identify trees anywhere in the United States with this versatile app.
Tree Community & Forum
Get help and answers from citizen arborists around the world.
Your 10 Free Trees
Identify the trees sent to you in the mail by their leaves or painted color.

The cultivation of trees is the cultivation of the good,
the beautiful, and the ennobling in man. J. Sterling Morton