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

The storm coated trees with up to an inch of ice, leaving pockets of severely damaged pine and hardwood trees on state forest ...

The Alabama Forestry Commission (AFC) is alerting forest landowners to a new threat to loblolly pine trees: brown spot needle ...

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

And the prevalence of these types of trees in South Carolina is partly to blame for the seasonal allergies plaguing locals right now.  South Carolina sits on the edge — in several meanings of the ...

COLUMBIA — Herrick Brown remembers a time he was doing field research on an island off ... "From my knees down, it was all pollen-colored." Pine trees, like oaks and magnolias, rely on the ...