Botany
Uas is a tree that reaches a height of about 20 meters. Leaves are alternate, 10 to 30 cm long, with 5 to 9 leaflets. Leaflets are smooth, oblong or broadly lanceolate, 7 to 15 cm long, about 5 cm wide, the tip being pointed and the base blunt and oblique. Flowers are small, greenish, borne on panicles arising from the upper leaf axils. Fruit is inflated, smooth, yellowish-red, dehiscent, about 1.5 cm long and 2.5 cm wide, and divided into two lobes, each containing a few seeds.

Distribution
Common in thickets and second-growth forests at low and medium altitudes.

Parts used
Bark, fruit, seeds.

Uses
Folkloric
Bark is pounded and used as a substitute for gogo (Entada phaseoloides).
Bark and fruit used to prevent leech bites.
Oil of seed sometimes used as anti-rheumatic.
Others
Fish poison: Finely chopped, place on fresh-water streams to kill fish.

Availability
Wild-crafted.