BARK POACHERS:   Bark Poachers who steal the bark of the native slippery elm (Ulmus rubra), which is highly regarded in herbal medicine for soothing coughs, intestinal complaints and skin problems, have become a major problem on public lands in Appalachia, and the National Center for the Preservation of Medical Herbs has added this tree to its list of endangered plants that include ginseng, bloodroot and black cohosh.
The Avant Gardener, Volume 38, Number 12, October, 2006