Glabrous. Leaves usually quaternate, rarely decussate; lamina narrowly obovate to elliptic, mostly 4-10 cm long, mostly 2-5 cm wide, attenuate at the base to a petiole mostly 4-12 mm long, rounded to obtuse at the apex, dull on both sides; venation pinnate with the midrib raised in the basal part and otherwise obscure. Inflorescencess many at the nodes and along the internodes and epicortical runners, sessile 1- to 3- (usually 2-) flowered umbels; pedicels (0.5-)2-4 mm long.
Asia-Tropical: Borneo present; Sulawesi (Sulawesi present); Thailand (Thailand present), Sulu Is present, Taliabu present, northern parts from Philippines to Bangka present
Thailand; Malesia: northern parts from Philippines to Bangka, Borneo, Celebes, Moluccas (Sulu Is, Taliabu).