A tree’s underground root system can extend up to 20 feet deep in ideal soil conditions, and spread over an even greater area. The roots can continue to grow even after the trunk is gone ...

The roots can also remove environmental toxins through a process called phytoremediation. Older trees even help decrease the risk of forest fires by limiting the amount of light that shines through ...

Think of a tree and what comes to mind probably has some leaves, some roots, and a trunk. But not all trees follow that formula. Some form what are called clonal groves: swaths of forest connected ...

The ancient persimmon tree in Quang Huc, Phu Tho, has stood for a thousand years, serving as a spiritual landmark. Recognized ...

Need a break? Play the USA TODAY Daily Crossword Puzzle. When moving a tree, do not carry it by the trunk which may cause root or trunk damage. Carry it in a bucket or with canvas around and under ...