Dr. John de la Parra is an ethnobotanist and plant chemist with expertise in medicinal plants and food crops.

As an Associate at the Harvard University Herbaria he regularly delivers lectures and short courses on ethnobotany, agriculture, and medicinal plants. He is also currently redeveloping the course "Plants and Human Affairs", which he is teaching in its next iteration. This course has been taught at Harvard since 1876 and represents the oldest course in the United States focused on plants and their uses.

He holds additional appointments as a Lecturer of Environmental Studies at Tufts University, and a Lecturer of Biotechnology at Northeastern University.