So dramatic were the effects that I felt compelled to use some of my newly recovered energy to find the herb in its natural environs. With the help of some USDA distribution maps, a couple of Forest Rangers, and the Forest Service’s Regional Botanist, I located and harvested a supply from a small stand in the Pisgah National Forest in western North Carolina. (It is considered a “rank weed” by them, and I was told to “have at it” when I asked about digging it. Of course, I took care to scatter the seeds well so that small stand will be somewhat larger next year. One man’s weed is another man’s medicine.)