Clove Bud is a plant in the family Myrtle and genus Syzygium. Evergreen trees, reaching up to 10 meters in height. Leaves opposite each other, ovate oblong or long oblong, apex gradually pointed, base gradually narrowed and extended downwards to the stem. Fragrant flowers, forming a terminal inflorescence with a clustered umbrella; Calyx thickened, green to purple, long tubular, with a four lobed tip; Petals white with a hint of light purple; Majority of stamens; Inferior ovary; The column head is not obvious. Berries are reddish brown in color. Originating from Indonesia, it has been introduced to tropical regions around the world. Using flower buds and their fruits as medicine. The flower buds are called male lilacs or male lilacs, and the fruits are called female lilacs or female lilacs. When the flower buds start to turn white, gradually turn green, and finally turn bright red, they can be collected. Remove the flower buds from the stems and dry them in the sun.