SEQUOIA NATIONAL PARK, California (AP) — High in the evergreen canopy of General Sherman, the world’s largest tree, researchers searched for evidence of an emerging threat to giant sequoias: bark ...

According to the American Forestry Association, the Owensboro sassafras has been a "tree champion" since 1956.

With a natural range limited to a few stretches of forest in California, the giant sequoia is known for one feature above all ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SEQUOIA NATIONAL PARK, California (AP) — ...