Johann Gottlieb Benjamin Siegert was a German physician and botanist born in 1780. He is best known for his work in the field of medicinal plants and his contributions to the study of phytochemistry. Siegert's research focused on the properties and uses of various plants, which helped advance the understanding of herbal medicine. In addition to his botanical studies, Siegert was also involved in the development of tinctures and other herbal preparations. His work laid the groundwork for future research in natural remedies and contributed to the growing interest in pharmacognosy, the study of medicines derived from natural sources.