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 ...

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 ...

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 ...

The tall, slender beech trees with their dark green, dense crowns – the very symbol of the temperate forests in Europe – may have disappear from many landscapes by the turn of the next century. Today, ...

If you look at the trees as you're driving on the Trans-Canada Highway toward Banff National Park, you will see Englemann spruce on the cooler, wetter northeast-facing slopes of the Three Sisters.

Climate change is rapidly altering weather patterns, resulting in shifts in climatic zones. The survival of trees in specific locations depends on their functional traits. Local populations exhibit ...