People have harvested and processed forest plants for medicinal purposes since the beginning of recorded history. Ginseng is perhaps the one best known in Kentucky because it is easily the most commercially valuable. However, if you read health supplement labels in all the "big box" stores or other similar locations, you will find goldenseal, blue cohosh, black cohosh, bloodroot, wild ginger, slippery elm, witch-hazel, mayapple, and many other forest plant-derived substances. There are established markets for these plants, although not as obvious as corn, soybean, or cattle markets.