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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...