• To use this key, click on the image that best fits the description of the tree you are trying to identify. Although this is generally a dichotomous key, you will occasionally have three choices. Throughout the key the most important diagnostic characteristics are seen in red. When the key brings you to a species, click on the final image for a photo and more information about the tree you have identified.
  • Start by clicking on the image that represents the leaf type of the tree you are keying out.

    Does the tree have leaves that are needle-like, and are usually evergreen?

Does the tree have leaves that are small, scale-like or awl-shaped, and hug the twig; and fruit that is berry-like, often with a whitish, waxy covering? These are junipers.
 
Does the tree have leaves that are broad and thin, and are deciduous (do not stay green or stay on the tree overwinter) or evergreen?