Annual cold snaps have kept some invasive tree pests in check, but outbreaks could become more common with warming ...

Now, researchers at the University of Texas at Arlington are using artificial intelligence to take the guesswork out of pollen tracking, starting with tree pollen.

The amount of forest with problems is only a small fraction of the overall 22 million acres state officials looked at, but it ...

Parts of the North Cascades and Mount Baker are facing an outbreak of the western spruce budworm, aerial surveys reveal. The ...

A popular mountain bursting with rhododendrons and endangered species in Mitchell County will soon reopen, nearly eight ...

Fir trees also have similar looking cones, primarily at the top, but tend to stand upright where spruce hangs downward. These cones do not drop and disintegrate attached to the tree twig.

Winds blasting at 100 mph during the storm "heavily impacted" the spruce fir forest atop the mountain, causing loss of tree canopy and hazardous conditions, according to the release.

Roan Mountain is home to some of the world's most unique plants and animal species, including rare spruce fir forests, rhododendron gardens, and over 250 rare or endangered plants, according to ...

Fraser fir (Abies fraseri) is one of the most popular Christmas trees due to its attractive color and shape, fragrance, excellent needle retention, and slightly upturned branches capable of ...