He practiced medicine by day and pursued botany by night, the one to pay the bills the other to fulfill a passion. In George Engelmann’s day a person could starve as a botanist, but he couldn’t make a ...

One of the dominant tree species in our Colorado Rocky Mountain subalpine forests is the spruce. A spruce is an evergreen tree or conifer belonging to genus Picea and there are about 35 species ...

Banner image: A forest in the San Juan range of the Rocky Mountains, with dead Engelmann spruce trees alongside live aspen trees. (Credit: Robert Andrus) Bark beetle outbreaks and wildfire alone are ...

For the third time in the state’s history, a Colorado tree will be displayed on the west lawn of the U.S. Capitol for Christmas. On Sunday, bundled-up visitors stopped at the Midtown development, at ...

If the climate continues warming as predicted, spruce beetle outbreaks in the Rocky Mountains could become more frequent, a new multi-year study led by Colorado State University finds. While insect ...

Bryan Hankinson, a fall 2014 CU-Boulder student who graduated magna cum laude, developed his honors thesis by investigating the relationship between an increase in spruce bark beetle population and a ...

DENVER — The 2020 U.S. Capitol Christmas Tree harvested from western Colorado will begin a nationwide tour this week on its way to Washington, D.C. The tree begins its tour Tuesday in western Colorado ...

Engelmann spruce is the dominant tree at timberline in the Front Range at approximately 3,350 m elevation; it occurs as krummholz in the forest-tundra ecotone up to about 3,500 m, and occasional ...