Every year, as the leaves turn and a chill enters the air, a familiar debate lights up social media feeds. The question is simple yet divisive: when is the right time to put up the Christmas tree?

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. UC Davis ...

Add Yahoo as a preferred source to see more of our stories on Google. Tree branches in art throughout history follow geometric rules related to fractal geometry. 'Almond blossom' by Vincent van Gogh.

When trees and soil fungi form close associations with each other, both partners benefit. Many tree species have further enhanced this cooperation by forming a concurrent symbiosis with two different ...

For the second year in a row, The Morton Arboretum’s Tree Root Biologist Luke McCormack, Ph.D., has been recognized as one of the most cited and influential researchers worldwide by global information ...

As extreme heat claims more lives during ruthless summers in the region, Southern Nevada is upping the ante in its tree planting efforts. But a new study suggests trees alone may not be enough to make ...

Lightning is one of nature's most destructive forces, responsible for killing millions of trees every year. But in the rainforests of Panama, one species has flipped that danger into a powerful ...

Do artists and scientists see the same thing in the shape of trees? As a scientist who studies branching patterns in living things, I’m starting to think so. Piet Mondrian was an early 20th-century ...