Syzygium wightianum is a species of woody plant of Myrtaceae family, distributed in India, Myanmar, Laos, Cambodia and Vietnam. In Vietnam, the tree grows in tropical monsoon evergreen hilly and low mountain forests below 1000m asl, from Kon Tum, Gia Lai down to Kien Giang (Phu Quoc).
The large woody tree can grow up to 20m in height, 30-40cm in diameter with strong branches. The leaves are simple, alternate, slender blade, 10-14cm in length and 3-5cm in width, thick and tough; secondary veins are 5-6mm apart with a thin vein in their middle; petiole is 5mm long. Inflorescences are 2cm high from old leaves. The group 3 flowers have long buds, petals 8-12mm long, 1.5-2.5mm wide. Fruits are 1.5cm long, up to 1cm wide, pale color, containing an up-side down cone-shaped single grain. The fruit ripening is in July-August. The bark can be used to treat dysentery, diarrhea.