Pedanius Dioscorides

Pedanius Dioscorides (Ancient Greek: Πεδάνιος Διοσκουρίδης, Pedánios Dioskourídēs; c. 40–90 AD), "the father of pharmacognosy", was a Greek pharmacologist, physician, botanist, and author of De materia medica (in the original Ancient Greek: Περὶ ὕλης ἰατρικῆς, Peri hulēs iatrikēs, both meaning "On Medical Material"), a 5-volume Greek encyclopedic pharmacopeia on herbal medicine and related medicinal substances, that was widely read for more than 1,500 years. For almost two millennia Dioscorides was regarded as the most prominent writer on plants and plant drugs.