Sindora Supa (Balayong) is a deciduous, unarmed tree reaching a height of 20 to 30 meters. The bole is straight, regular, and without buttresses. Leaves are pinnate, about 15 centimeters long, with three pairs of leaflets which are glabrous, coriaceous, elliptic, 3.5 to 9 centimeters long and 2.5 to 5 centimeters wide. Panicles are terminal or axillary, 10 to 15 centimeters long. Pods are broadly ovate, about 4 centimeters long and 6 centimeters wide, rounded at the base, somewhat beaked at the apex, evenly provided with spinelike thorns. Seeds are 1-3, black, shiny, with a large and fleshy aril.