Trees by Common Name Trees by Scientific Name Dichotomous Key Mystery Tree

Welcome to the tree identification Home Page at Oregon State University! The purpose of this site is to help you identify common conifers and broadleaves in the Pacific Northwest. Feel free to skip through the pages to learn more about specific genera, or to try your hand at identifying a tree specimen with a user-friendly dichotomous key. If you don't have a specimen handy, go to the mystery tree pages to try to identify the trees pictured.