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

UC Davis Professor Hugh Safford was hiking for pleasure in California's High Sierra when he stumbled upon a new elevation ...

The Jeffrey pine, one of the iconic trees of the Sierra Nevada, appears to have eclipsed other pines to become the ...

A professor's casual hike in the High Sierra turned into a new elevation record for California's highest tree, the Jeffrey pine, which wasn't formerly known to grow at extreme elevations.

and becomes quite furrowed in older trees. The eastern white pine adds a ring of side branches and a terminal shoot yearly with age. The cones of this species are up to eight inches long, have ...

In an old-growth longleaf pine savanna, the absurdly long pine needles sing in the wind. Once considered forests, these ...

PORTLAND, Ore.— The U.S. Fish and Wildlife Service announced today that the whitebark pine will be listed as threatened under the Endangered Species Act. The pine is the most widespread tree to ...

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. " ...