Is that tree a pine, a fir or a spruce? Here's a handy guide to identifying the many species of trees populating Central ...

The oldest tree species is the Great Basin bristlecone pine (Pinus longaeva). The oldest tree of the species is named Methuselah and is more than 4,800 years old. The longevity of the Great Basin ...

The red pine tree, found in North America, can perhaps be best likened to the underwhelming cousin of the more widely known white pine. The qualities of the white pine made it a staple for the early ...

Ectomycorrhizal associations are of major ecological importance in temperate and boreal forests. The development of a functional ectomycorrhiza requires many genetic and biochemical changes. In this ...