The Douglas fir can grow several hundred feet and live for over 1,000 years. Oregon's state tree, the Douglas fir, comes in two types, coast and Rocky Mountain.

Douglas fir is the most abundant tree species in the Pacific Northwest. It’s Oregon’s official state tree. And it’s arguably the region’s most important timber species.

A downed Douglas Fir tree stretches far into the brush, covered in mangled limbs and other trunks it struck on its earth-shaking descent. It was between 500 and 1,000 years old , arborists say.

Bennett said the Douglas fir die-off mirrors similar issues happening to other conifers throughout the Pacific Northwest. And the large tree mortality exacerbated by climate change is not confined ...

PORTLAND, Ore. (KOIN) – Drier air caused by the changing climate is stressing Douglas fir trees, Oregon State University researchers say. The stress these trees experience from drier air is more ...

SEATTLE — A Douglas fir was cut down Monday in Seattle's Maple Leaf neighborhood after activists attempted to stop the tree's removal. Pacific Tree Management cut down the tree near 90th Street ...

Instances of Douglas fir beetles harming B.C., Interior forests are on the rise, particularly in the Cariboo region. The bugs tend to attack dying trees impacted by wildfires or drought, ...