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Dichotomous Key

is your tree a conifer? Is your tree a broadleaf? back to dichotomous key introduction

Using a key is like following the branches of a tree-- each additional branch gets smaller and smaller until you reach a single branch tip. All the species described in a tree are represented by the trunk, while each branch tip represents a single species of tree.

To identify a tree, first decide whether it is a conifer or broadleaf...

  • Conifers have needlelike or scale-like leaves and usually bear seeds inside woody cones;
  • Broadleaves usually have wide, flat leaves and bear their seeds inside of soft fruits.


trees by common name trees by scientific name dichotomous key mystery tree
