A thin-leaved deciduous hardwood tree that's found all over north america, mainly in northern temperate and boreal climates. The most recognizable feature of Birch trees is their distinctive bark, characteristically marked with long, horizontal lenticels, and often separates into thin, papery plates. Birch, due to it's moisture content and and density, is among the best hardwood species to burn for firewood.
One of a genus of about 35 species of coniferous evergreen trees, it's found in the northern temperate and boreal regions of north america, as well as the rest of the world. Spruce are a large tree, reaching heights of 20 meters up to as tall as 60 meters when mature. Spruce needles are instantly recognizable with each needle being individually attached to the branch in a circular pattern. Norway claims to have the oldest surviving spruce tree which has, by the way of layer reproduction, reached an astonishing age of 9550 years old. Regarded as a softer wood species, Spruce is excellent when used as heating wood for cabins and homes as they burn evenly and quickly and make heat control easier.
Growing anywhere from 3 to 80 meters tall pine trees are one of the most common trees in north america. Growing as far as 66 degrees N and as far south as 12 degrees N pine can even grow in sub-tropical regions. It's most recognizable feature, it's distinctive seed pod called a pine cone, has been a staple in everything from professional holiday decorations to children's crafts. Pine trees are incredibly hearty surviving in extremes where other tree's can not flourish and are a long lived tree, living between 100 - 1000 years. Pine has a distinctive, pleasant odor when burned and is a great camping and heating wood.
All Aspen's are found in the cold regions of the Northern Hemisphere, extending south at higher altitudes in the mountains. These tree's sit somewhere in the middle when it comes to growth, reaching heights of 30m (98ft). Aspens are interesting because they grow in clonal colonies, they spread by the means of "root suckers" and while the tree's may only live 40-150 years these shared root systems can live for thousands of years. The oldest of these systems is believed to be in Utah, USA and may be 80,000 years old.