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, ...

To properly manage a tree, you need to know what species it is. Plus, tree identification is a lot of fun. Knowing a tree’s species is key to understanding their proper growing conditions, how to ...

Researchers have named six new tree species based on comparisons made among collections of dried plant specimens from across the Neotropics. Of these six, three of the new species have only been found ...

As greenhouse gas emissions nudge temperatures higher, trees’ growing ranges are shifting northward, projections from the U.S. Forest Service show. Trees near the southern edge of their geographic ...

Forests protect against avalanches, but not every forest is equally effective. Thanks to almost 50 years of observations at the Stillberg afforestation site, SLF researchers have now gained insight ...

Major government and private funding is being invested in planting trees as a powerful tool to fight climate change. But new research shows a troubling bottleneck that could threaten these efforts: ...

The Bradford pear tree, with its fluffy white early-spring blossoms, is a looker. Even the tree's putrid aroma emitted at full-bloom hasn't kept it from becoming a go-to ornamental option for ...

Last fall, I invited a stranger into my yard. Manzanita, with its peeling red bark and delicate pitcher-shaped blossoms, thrives on the dry, rocky ridges of Northern California. The small, evergreen ...