Glabrous. Leaves opposite; lamina narrowly ovate to ovate, mostly 8-12 cm long, 2-6 cm wide, cuneate at the base to a petiole 1-3 mm long, acuminate and acute or obtuse at the apex, glossy above, dull below; venation pinnate with the midrib and the main laterals distinct above and the midrib prominent below. Inflorescences at the nodes, an umbel of 1 opposite pair of flowers; axis 1-4 mm long; pedicels 1-4 mm long; bracts 0.8-1.5 mm long, concave, somewhat appressed at the bud stage, the laterals ones connate.
Asia-Tropical: Borneo present; Sumatera (Sumatera present), Southern China (including Hainan) and Vietnam present
Southern China (including Hainan) and Vietnam; Malesia: Sumatra, Borneo. The area of the species may be disjunct.