Tree root systems are seldom on the minds of forest owners, tree planters, and general dendrophiles. Roots are rarely exposed, and so misconceptions about how they grow and function can influence ...

Green Spaces Help Alleviate Loneliness in Urban Areas, Study Shows. Researchers say natural features in overcrowded environments help to make people feel more connected.

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Spruce trees grow at either high altitudes in the southern Appalachians ...

Here are United States Forest Service geographic maps defining the 20 major forest cover types in the United States and where common trees are most often located based on frequency of occurrence.

Pinyon pine is a widely distributed pine that grows in the Intermountain region of western North America. It is a major indicator tree in the pinyon-juniper life zone. P. edulis is a short and ...

In an era when residential energy use accounts for a fifth of U.S. emissions, these off-the-grid communities are carving their own sustainable paths.