Book excerpt: This is a local study of wild medicinal plants in the Greater Green Swamp, what is changing, and why. It looks at what has happened to drained and logged swampland, where soil at the top of Bone Valley, recovering from an extended hydroperiod has become home to a number of pan tropical medicinal plants. Eight of the common wild medicinal plants in Kathleen, FL are looked at from a point of view of their value in history, how these plants are treated in the United States, and how they are used all around the world.