American medicinal barks

The healing barks of North America, catalogued by an expert. Alice Henkel, a government botanist, describes the native trees whose barks were long used in medicine, where they grow, how they were gathered, and what they were used for. Authoritative and clear, it preserves a whole body of practical herbal knowledge. A fascinating reference for anyone drawn to the old plant medicine of the American woods and the science that documented it.