形态特征乌墨(Syzygium cumini)桃金娘科,别称海南蒲桃、密脉蒲桃、乌贯木等。常绿乔木,树高可达20米左右,径粗可至80厘米,树冠倒卵形。树皮厚达2厘/米以上,表面黄灰至灰黑色,凹凸不平,内皮松脆,砍开后由白变紫,最后转为紫黑色,易与木材分离,具腥味,小枝灰褐 Morphological characteristics of black ink (Syzygium cumini) Myrtaceae, also known as Hainan Rose, Mi Pui Rose, Wu Guan Mu and so on. Evergreen trees, tree height up to 20 meters, up to 80 cm in diameter canopy, crown obovate. Bark thicker than 2% / m, the surface of gray to gray-black, uneven, crust crisp, cut from white to purple, and finally turned purple, easily separated from the wood, with the smell, twig gray brown