The class will use images and live samples to help participants quickly identify Idaho's most common native trees, such as ponderosa pine, western larch, Douglas fir black cottonwood and more. " ...

Ponderosa pine and Douglas-fir forest in the Boise National Forest, Idaho, 22 years after it burned in the 1994 Idaho City Complex Fire. Disclaimer: AAAS and EurekAlert! are not responsible for ...