It's the most common tree in Douglas County, but it's also under threat from the mountain pine beetle. As Colorado Gov. Jared ...

Montana's official state tree is pretty easy to find. It's the ponderosa pine, the most common tree in the state. The ponderosa pine is animal friendly to a wide variety of wildlife species. Wild ...

As you looked out the windows of your house this winter at all the dormant and barren deciduous trees in your landscape, perhaps you thought that a little green would be a nice addition this year. But ...

Witch's brooms are compact, rounded collections of short needles and small cones. They can sometimes make up the entire leafy crown of a tree. Staff at North Carolina State University are asking for ...