Tree to 15 m tall. Forming a lignotuber.Bark rough to all but the smallest branches, loose, thick, tessellated and flaky, yellow-brown to yellow-orange and yellow-grey.Branchlets smooth (glabrous); pith contains ± elongated oil bodies.Juvenile growth (coppice or field seedlings to 50 cm): stem rounded to square in cross-section, predominantly glabrous (setose/scabrid only in very lowest part); juvenile leaves always petiolate, opposite, scabrid and with peltate base for only 1 or 2 nodes, then alternate, glabrous and with normal petiole insertion and truncate to rounded bases, ovate, 7.5–14.5(18.5) cm long, 4–10 cm wide, margin entire or distantly indented, apex pointed, green to grey-green. Crown entirely of glabrous Adult leaves; leaves alternate, petiole 1–3.8 cm long; lanceolate or falcate, 8–19 cm long, 1.5–4.5 cm wide, flat, base tapering to petiole, apex finely pointed, margin entire, concolorous, dull, grey-green to green, penniveined, densely to very densely reticulate, intramarginal vein parallel to and just within margin, oil glands island, small, scattered.Inflorescence terminal compound, peduncles 0.7–2.8 cm long, buds 7 per umbel, shortly pedicellate (pedicels 0.1–0.7 cm long). Mature buds obovoid, 0.7–0.8 cm long, 0.4–0.5 cm wide, scar present (outer operculum shed early), operculum flattened to rounded and umbonate, or conical, stamens inflexed, anthers ± oblong, versatile, dorsifixed, dehiscing by longitudinal slits (non-confluent), style long, stigma tapered, locules 3, the ovules arranged in 4 or 5 ± vertical rows on the placentae. Flowers white.Fruit sessile or shortly pedicellate (pedicels 0.1–0.7 cm long), barrel-shaped to urceolate or truncate-globose, 0.8–1.4 cm long, 0.8–1.2 cm wide, disc descending, valves 3, enclosed.Seeds brown to reddish brown and shiny, 2.5–6 mm long, boat-shaped with a keel on the smooth and usually cracked dorsal surface, not winged but some seed have a short flange at one end, hilum ventral. Cultivated seedlings (measured at ca node 10): cotyledons reniform to orbicular; stems rounded in cross-section, setose only to ca node 4–6 then glabrous; leaves always petiolate (to 2.1 cm), opposite until ca node 2–3 then alternate, ovate to ovate to lanceolate, 10–15 cm long, 4–7.9 cm wide, base lobed to truncate then rounded, or becoming peltate for a couple of nodes but by node 9 petiole insertion in lamina reverting to rounded, margin entire, apex pointed, dull, green, ± concolorous, setose only for lowest 6 leaf pairs then glabrous
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