Red spruce occupies the Appalachians into upper Northeastern states and provinces. White and blue spruce trees mainly grow throughout most of Canada. Englemann spruce, blue spruce, and Sitka ...

Another of the most common types of spruce trees is white spruce, a tree that grows in the wild throughout much of the northern United States. These trees (Picea glauca) grow well in protected ...

But it was something more troubling: a stand of white spruce trees ... that the shadows in the satellite images were in fact out-of-place trees that are part of a phenomenon known as Arctic ...

University of Alberta research is showing how trees and fungi team up to survive and stay healthy against insect attacks—an alliance that could lead to more resilient forests. Endophytes—tiny ...

A line of severe storms that swept through Minnesota and Wisconsin on Thursday took down countless trees. But for one Minnesota family, the loss of a white spruce was too big to measure.