Christmas is not just about planning for reunions and meals. Decor­ations like the Christmas tree, which will be decked with ...

The good news is that some pine varieties are better at playing the role of long-lasting ... While we can't say to add a ...

A young pine tree grows among shrubs in a wildfire restoration research plot in the Sierra Nevada. Credit must be given to the creator. Only noncommercial uses of the work are permitted. No ...

From snow-dusted picks to adorable miniatures, here are the best artificial Christmas trees to spread cheer this holiday ...

It's a delicate art, and, Tony says, back in the 1960s, one scientist's drill broke off inside the bristlecone pine tree he was sampling. The kit is expensive, and to help him recover the lost ...

University of Minnesota scientists have identified the chemicals tree-killing beetles use to communicate. Those could be formulated into repellents to safeguard one of the state’s signature trees.