The following points highlight the top four types of drugs obtained from barks and its uses. The types are: 1. Cinnamon 2. Quinine 3. Asoka Tree 4. Arjun Tree. Type # 1. Cinnamon: Cinnamomum zeylanicum B1., of family Lauraceae; Eng. Cinnamon; Hindi—Dalchini. This is native of Sri Lanka but grown in the Nllgirls, South Kanara, […]