Scientist finds Jeffrey pine trees at record mountain heights, suggesting climate-driven shifts in Sierra Nevada.

Feeling a little stuck with your landscape ... A snow-covered pine forest in the heart of winter conveys a sense of calm and ...

A UC Davis professor's pleasure hike in the High Sierra turned into a new elevation record for California's highest tree, the ...

If you think of New Jersey as highways and crowded beaches, prepare to be astonished. Tucked away in the heart of the state ...

Though the tree appeared to be thriving ... Unlike other organisms that have been ravaging the American landscape—Asian carp, kudzu—the mountain pine beetle isn’t an immigrant.

Over the past decade the Mountain Pine Beetle (Dendrocthonus ponderosae) has killed millions of pine trees from New Mexico to the Yukon Territory, as a result of an unprecedented explosion in their ...

Sparse ground cover means the threat of fire is greatly reduced, a danger further lessened by the relative paucity of dead bristlecone needles in a landscape where trees are few and far between.

It’s also important to protect the places on the landscape where the tree is managing to survive ... “The whitebark pine is just one of the many species being pushed off the tops of mountains by ...

The USC professor looked down at his feet, the ground thick with years of fallen pine straw ... it's also an unforgiving landscape. Plants and trees must be hardy enough to survive droughts ...