Wicked Plants by Amy Stewart

This is a "novel" concept: a trailer for a book. Amy Stewart's new book is about dangerous plants, and in this video she references a few that are available in the Chinese pharmacopoeia: monkshood (Wu Tou, whence springs our friends Fu Zi, Chuan Wu and Cao Wu), castor bean (Bi Ma Zi, a harsh downward draining herb) and strychnine (Ma Qian Zi).

Remember what Paracelsus said: "All things are poison and nothing is without poison, only the dose permits something not to be poisonous." That's another way of saying the dose makes the poison.