Where I live we have a plant that is called an "Indian Pipe", not sure of the Latin name but it is used as an astringent. I am a mushroom hunter and I find Tons of medicinal mushrooms in my area. Plus I cultivate mushrooms. I have been making tinctures and also encapsulating Reishi lately. Good stuff.
I can also recommend the petersons guides as well. I have 1 for medicinal plants and 1 for edible plants. I would also recommend picking up a few mushroom ID books for your area. Good stuff to know!!