tree; The bark is brown with longitudinal fissures; The pillar root hangs down into the ground. Leaves are broadly elliptical to rectangular in shape, measuring 10-16 cm in length and 5-10 cm in width. The tips are blunt or short pointed, and the base is wedge-shaped. The midrib and petiole are both green; The petiole is thick and robust, measuring 2.5-5 centimeters in length; The length of the leaves is 5.5-8.5 centimeters. Red eggplant is the bark or root of Rhizophora mucronata Poir, a plant in the mangrove family. Distributed in Taiwan. It has the effects of detoxification, clearing heat and dampness, cooling blood and stopping bleeding. Commonly used for sore throat, diarrhea, dysentery, hematuria, and traumatic bleeding.