Get the best information about tree's than can be used for medicine right here and you don't have to pay a small fortune to get it either! We carry the most dependable field guides plus you can even grow your own medicinal tree's because we sell them! Indian's and Early Settler's used many different type's of tree's for medicine and the history of medicinal tree's goes even farther than that. Big John Wayne's Tip of the Day: Do not use any tree for medicinal purposes unless you have a dependable field guide.