Before access to modern medicine became widespread, the rural poor mixed up their own treatments from the plants they grew and foraged. They learned which plants would relieve aches, supplement nutrition, and get rid of infections. These days, a trip to the pharmacy is a much more common way to heal an ailment. But there are still enclaves of natural healing around our region. Angela Hatton traveled to Clarksville, Tennessee, where a local herbalist has preserved her great-grandmother’s remedies.