Tree to 15 m tall. Forming a lignotuber.Bark rough over trunk and branches to ca 2 cm diameter, deeply tessellated, dark brown to red-brown to orange and brown-grey.Branchlets smooth; lack oil glands in the pith.Juvenile growth (coppice or field seedlings to 50 cm): stems rounded in cross-section, smooth; juvenile leaves always shortly petiolate, opposite for ca 30 nodes, linear-oblong to narrowly lanceolate, 7–11.5(15) cm long, 0.4–1.1(1.5) cm wide, base tapering to petiole, apex pointed, dull, green, discolorous, glabrous.Adult leaves alternate, petioles 1–3 cm long; blade lanceolate, (6.5)8–15 cm long, 0.9–2.1 cm wide, base tapering to petiole, margin entire, apex finely pointed, strongly discolorous, usually dull to slightly glossy, dark green above, paler below, smooth, side-veins greater than 45° to midrib, reticulation dense to very dense, intramarginal vein present but very close to margin and more easily seen from underside, oil glands obscure or sparse and island.Inflorescence terminal compound, peduncles slender 0.3–1.6 cm long, buds in umbels of 7, pedicels 0.2–1.2 cm long. Mature buds obovoid to pyriform (ca 0.6 cm long and 0.5 cm wide), glossy, scar absent (both opercula shed together at flowering), operculum shallowly rounded to conical, stamens inflexed, all fertile, anthers oblong, dorsifixed, versatile, dehiscing by longitudinal slits, style long and straight, stigma blunt, locules 3 or 4, the ovules not arranged in clear rows on the placentae; flowers creamy white.Fruit pedicellate (pedicels 0.5–1.2 cm long), urceolate to ± barrel-shaped, not flared at the rim, 1.3–1.8 cm long, 1–1.5 cm wide, longer than wide, ± smooth, disc descending vertically, valves 3 or 4, enclosed.Seeds brown, 8–11 mm long, ellipsoidal with terminal wing, hilum ventral Cultivated seedlings (measured at ca node 10): cotyledons reniform; stems rounded in cross-section, setose with short bristle-glands only at lowest nodes to ca node 3, otherwise smooth; leaves sub-sessile to shortly petiolate, opposite, linear-oblong, 5–10.3 cm long, 0.6–1.3 cm wide, base tapering to petiole, green, darker upper surface slightly glossy by node 10, sparsely setose only on lowest leaves, soon becoming free of setae.
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