Tree up to 20 m, sometimes flowering when 1.5 m high. Bole up to 65 cm in cir-cumference; sometimes fluted at base. Outer bark smooth, grey, brown or greyish-brown; inner bark pale yellow; sapwood reddish-brown or white; latex white. Twigs densely covered with golden-brown or brown stellate scales usually only near the apex. Leaves imparipinnate, up to 80 cm long and 50 cm wide; petiole up to 22 cm, petiole, rachis and petiolules with few to densely covered with scales like those on the twigs. Leaflets 9–15(–17), 9–28 by 3.5–11.5 cm, pale green or yellowish-green when dry, with numerous orange-brown pits on the lower leaflet surface and few to numerous tiny golden-brown stellate scales on lower surface, sometimes with darker peltate scales or reddish-brown stellate hairs interspersed, often rugulose on upper and lower surfaces, acurinate or caudate at apex, rounded or cuneate at the asymmetrical base; veins 8–14 on each side of the midrib, reticulation usually visible on lower surface, petiolules 1–20 mm long. Male inflorescence up to 60 cm long and 25 cm wide; peduncle up to 15 cm, peduncle, rachis, branches and petiolules with few to numerous golden-brown stellate scales. Male flowers up to 1.5 mm in diam.; pedicels up to 1 mm. Calyx with few to densely covered with golden-brown stellate hairs on the outside. Petals 5. Staminal tube up to 0.9 mm long, shorter than the corolla, usually subglobose sometimes obovoid, the aperture c. 0.3 mm across and shallowly 5–lobed; anthers 5(–7), half to as long as the tube, broadly ovoid, inserted near the base or in the upper half of the tube, curved and just protruding through the aperture, with a few simple hairs which sometimes fill the aperture. Female inflorescence c. 8 cm long and 2.5 cm wide, with lanceolate bracts up to 9 mm long and 2 mm wide, with few branches and c. 200 flowers; peduncle 3–20 mm. Female flower up to 3 mm long and wide; pedicel c. 0.5 mm. Petals 5. Staminal tube up to 2 mm long and wide, depressed globose or obovoid, with a few hairs inside; aperture c. 0.5 mm; anthers 7, c. 0.7 mm long and 0.5 mm wide with pale margins and tufts of hairs at the apices, inserted near the apex of the tube and protruding. Infructescence up to 20 cm long and 18 cm wide with 3–10 fruits; peduncle up to 5 cm, pedun-cle, branches and fruitstalks with surface and indumentum like the twigs. Fruits up to 4.5 cm in diam., usually pyriform, sometimes subglobose, sometimes with a beak and narrowed at the base to a stipe c. 5 mm long, usually with a thick, hard, woody peri-carp, sometimes the pericarp thin and brittle, yellow or brown, densely covered with golden brown or pale brown stellate hairs or scales. Locules 2, each containing 1 seed. Seed c. 2.3 cm long and 1 cm wide; aril white or red, edible, sweet or sour; testa brown.
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A small tree. It grows up to 25 m tall. The leaves are alternate and compound. The leaflets are slightly hairy underneath. The flowers are about 1 mm across. They are pale yellow. They are in groups. The fruit are 3 cm across. They are a greyish yellow. The seeds have a white to red fleshy layer around them.
A sub-canopy tree in primary forest, including riverine and moss forests, but more commonly found in secondary forest; growing on sand, limestone, sandy clay, loam, and alluvial soils; at elevations from sea level to 1,300 metres.
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It is a tropical plant. It grows in evergreen forests near streams. It is usually on limestone bedrock and in Thailand grows between 100-300 m above sea level.
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