Fir and spruce needles are attached to twigs one by one, while pines grow needles in bunches. Fir tree needles are soft and flat, while spruce needles are stiff and angular. Check out the best types ...

In 2008, scientist Bryan Black took core samples the diameter of a pencil from a forest near the north Oregon coast. Most of the trees were hemlocks and Douglas fir that had been undisturbed for about ...

Landscape and forest trees are experiencing widespread dieback this spring according to Glenn Ahrens, Oregon State University Extension Forester for Marion County. "Browning or dieback is usually ...

The world’s tallest Douglas fir is damaged but alive after burning for nearly a week in Oregon. On August 21, arborists climbed the famous 327-foot-tall tree known as the Doerner Fir and used a hose ...

Drought can damage and sometimes kill Douglas-fir trees. Dying trees have been spotted frequently in western Oregon this spring. (Glenn Ahrens) Many Oregonians have noticed widespread damage in ...

Kairos Futura and Aspen Center for Environmental Studies are partnering to mobilize the local community in order to save ...

How smart are you? Well, then, what is the most common tree species in Maine? If you thought pine, you are wrong, even though we are called the Pine Tree State. Or, if you said the white birch, you’re ...