Are you looking for help identifying trees? A simple scientific method for identifying plants or animals has an impressive name: the dichotomous (dih-kot-uh-muhs) key. As you use this tool, you make a series of choices based on characteristics of the item you want to identify. Oregon State University has an excellent dichotomous key for identifying common trees of the Pacific Northwest.
Sometimes it's helpful to have a small handbook that you can take with you when you're outdoors looking at trees. You can create your own tree identification handbook by printing some of the Pacific Northwest Native Plants Identification Cards. Learn about the ID plant cards, search by common name of plants, or search by scientific names of plants. There's even a blank template (Word doc) so you can create additional cards.
If you want more information, contact a librarian through your computer or at your local library.