Aglaia pachyphylla Miq.

Tree up to 43 m, sometimes flowering at 1.8 m, with a few ascending branches which have terminal clusters of leaves forming a small, open crown. Bole up to 20 m, up to 55 cm in diam., sometimes with buttresses to 3 m high, to 1 m out and up to 22 cm thick. Outer bark brown, greyish-brown or greenish-grey, with large corky lenticels or with pits and regularly longitudinal fissures, the fissures narrow, deep and c. 15 cm long, the intervals flat and somewhat scaly; inner bark dark brown or pale yellowish-brown, thick, firm and finely fibrous, sapwood pinkish-brown, pale brown or pale yel-low; heartwood brown; latex white, when present. Twigs stout, up to 2.5 cm in diam., with large prominent leaf scars and densely covered with reddish-brown stellate hairs or hairs which have a long central rachis and many arms. Leaves up to at least 135 cm long and 60 cm wide, imparipinnate, in spirals particularly towards the ends of the twigs where they are very close together, the petiole bases crowded together; petiole up to 30 cm, with a groove on the adaxial side, petiole, rachis and petiolules angular, with longi-tudina channels and densely covered with hairs like those on the twigs; latex white. Leaflets 13–23, 10–52 by 3–11 cm, upper surface shiny, acuminate at apex, usually rounded and subcordate but sometimes cuneate at the asymmetrical base, upper surface with numerous minute pits, lower surface densely covered with pale reddish-brown hairs which have a central rachis and 2–4 whorls of arms radiating from it, the surface of the leaflet barely visible between the hairs or densely covered with pale or dark brown stellate hairs or scales which sometimes have scattered darker hairs in between, sometimes densely covering the upper surface in young leaves, sometimes deciduous on lower surface of old leaves; veins (15–)20–45 on each side of the midrib, reticula-tion subprominent or visible on both surfaces; petiolules up to 10(–25) mm. Inflores-cence up to 45 cm long and 60 cm wide, flowers sessile on the final branches and of-ten clumped together; peduncle up to 10 cm, peduncle, rachis, and branches angular, channelled and densely covered with hairs like those on the twigs. Flowers subglo-bose, up to 2 mm in diam., sessile. Calyx densely covered with pale brown stellate hairs on the outer surface. Petals 5. Staminal tube subglobose, thick and fleshy, deep-ly 5-lobed; anthers 5, as long as the tube, ovoid and curved with the tube, with tufts of white stellate hairs at the apex and at the base of each locule, those at the apex filling the aperture of the tube. Infructescence with 1–15 fruits, up to 20 cm long and 15 cm wide; the fruitstalks up to 15 mm. Fruits up to 8 cm in diameter, obovoid or sub-globose:, greyish-green when young, brown when mature, densely covered with hairs like those on the twigs, glabrescent; the pericarp 3–5 mm thick, with white latex. Locules 2(–4), each containing 1 or 2 seeds. Seed completely surrounded by a fleshy, translucent aril.

A canopy or emergent tree in dense, primary forest; in the more open, secondary, swamp forest; along forest edges; found especially along rivers; growing on limestones, clays and sandstones; at elevations up to 1,350 metres.

UsesThe wood is hard and said to be durable; it is used for planks and temporary construction.

Can be grown by seedlings.