We are deep in the fall season in the Chicago area which means that most deciduous trees have lost their leaves.  This is why for this edition of our series on the native trees of the Chicago area, we have decided to focus on a type of evergreen tree that is found throughout the area, pine trees.  Pine trees (Pinus sp.) are medium to tall coniferous trees that are found throughout the world in the northern hemisphere.  Depending on the species,...