We were pushing through head-high willows along a brushy caribou trail, five days into our week-long trek across Alaska's Noatak valley, when my hiking partner, Brad Meiklejohn, startled me with a ...

Although a warmer climate could accelerate the growth of northern forests, increasing precipitation and higher atmospheric ...

Spruce shrubs and trees are conifers from the genus Picea, which includes 35 species. Spruce trees and shrubs are characterized by a branch structure, called a pulvinus, where the needles attach. This ...

Blue spruce (Picea pungens f. glauca), also called Colorado blue spruce, is a beautiful tree with blue-gray needles. Being colorful and relatively drought tolerant, it’s a favorite of many homeowners ...

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 ...

Many homeowners in northern Minnesota are asking the questions: Are my spruce trees dying? Should I be spraying something on them to help? Your spruce trees are not dying and it’s too late in the ...

Spruces are typically found in cooler, more mountainous regions, and can grow as tall as 50 meters. With around 50 species, spruces resemble firs but have some key differences. Their trunks tend to be ...

Q: What's killing Colorado blue spruce trees? My parents just had one cut down in front of their house, which made me start to take notice to others dying in the area. I have noticed dying spruces ...

Stanley Kunitz, one of our great poets, planted a spruce tree next to his house in Provincetown, Mass., and over the years that tree attracted some tenants, a family of garden snakes. I didn't know ...