Is their plant folklore out their?

 I had no idea there was so much interesting folklore out there concerning the plants we eat. It is also neat that there is folklore for all of the various cultures on the planet. I can't help but wonder if some of these folklore stories are meant to be taken literally. For example, mugwort has two interesting stories associated with it. One story says that burning mugwort drives away bad dreams, but another story says drinking mugwort tea lets witches turn into animals. Do you think this means the stories might be true? Or do you think they are just stories? What about all the other plant stories? Do you think they are true too? I'm really enjoying the folklore I'm learning about, so I would love to hear your thoughts. What do you think?.