The world still holds its secrets. Hidden under wet rocks, in the ocean’s twilight crevices, and in the minutiae of the ...

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

In anticipation of a hotter, drier climate, foresters across the Pacific Northwest have been testing new species of trees.

Is that tree a pine, a fir or a spruce? Here's a handy guide to identifying the many species of trees populating Central ...

Staking prevents the root ball from shifting and incurring damage while the tree acclimates to its surroundings. To reap the ...

Trees are some of the largest and most widespread organisms on Earth, yet the true number of their species has been an enduring mystery. This lack of knowledge is detrimental to conservation efforts.

Researchers have found almost identical patterns of tree diversity across the world's tropical forests. The study of over one million trees across 1,568 locations found that just 2.2% of tree species ...

These were Eastern hemlock trees that had died and lost their bark but remained standing, providing a terrific habitat for a ...

More than a third of all tree species worldwide face extinction, threatening ecosystems, plants, animals and economies around the world, experts warned Monday. In all, 38% of trees are at risk, ...

Ask any first grader what a tree looks like, and they’ll draw a characteristic closed, scalloped shape suspended with two parallel lines extending downward. But ask a tree expert, or dendrologist, and ...

Two arborists’ uncommon hobby takes them deep into the North Carolina woods to look for the state’s leafy giants.

Oregon is the best place in the world for Christmas trees. With 4.7 million trees produced in 2017, that much is not up for debate. But what is debatable is the age-old question: Which of Oregon’s ...