The author has taken great care in editing, shaping, and adjusting it, in general in its objectives, so that the scientist, professor, student, and intellectual need it, and meet the desire of people to know the properties of plants, benefit from their uses, and stay away from their harms, in an era when the return to plant medicine, directly or by rotation, is a prominent feature in the march of science in general and medicine, in particular, has become a prominent feature in the march of science in general and medicine in particular.