7-foot Chestnut tree (Castanea dentata) on Laurel Fork, Cheat River, Monongahela National Forest, West Virginia. http://www.nature.com/news/plant-science-the-chestnut-resurrection-1.11504 > http://www.acf.org/ > http://en.wikipedia.org/wiki/American_chestnut
Sassafras...you identify it by the mitten shape of the leaf and the smell of root beer at the roots. Collect the leaves in fall to crush and make "gumbo file", which thickens soups and stews. Use the roots to make sassafras tea. I keep trying to pot my small trees and I just have a black thumb I guess.