Its fluted trunk, blue-gray bark, and autumn foliage add interest year-round. American hornbeam is a slow-growing deciduous ...

The trees exchange carbon dioxide and oxygen with the atmosphere through little “mouths” in their leaves and tiny “windows” ...

With trees deemed healthy being cut down, arborists unite to protect the thousands more that are tagged for removal ...

Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study shows. Bark beetle-infested spruce trees begin to dry out already ...