Tree to 8 m tall. Forming a lignotuber.Bark rough over trunk and often larger branches and sometimes extending to smaller branches, but always of thin loose flakes which are grey-brown over rich red-brown in a tessellated pattern, the branches frequently very reddish flaky to white or cream and smooth.Branchlets smooth (glabrous); elongated oil bodies occur in the pith.Juvenile growth (coppice or field seedlings to 50 cm): stems square to rounded in cross-section, glabrous; juvenile leaves always petiolate, opposite for ca 20 nodes then becoming alternate, elliptical to ovate then lanceolate, 5.5–12.5 cm long, (1.7)2–5.5 cm wide, base rounded to tapering, apex rounded and apiculate or pointed, green, glabrous.Adult leaves alternate, petioles 0.9–2.8 cm long; blade ovate or lanceolate, 9–23.6 cm long, (1)2–3.5 cm wide, base tapering to petiole, margin entire, apex pointed, concolorous or only slightly discolorous, dull, green, smooth, side-veins at greater than 45° to midrib (penniveined), reticulation dense to very dense, intramarginal vein not visible (confluent with margin) or visible but very close to margin in broader leaves, oil glands small, scattered, island or sometimes absent.Inflorescence terminal compound, peduncles rounded, 0.4–2.1 cm long, buds 7 per umbel, pedicels slender, 0.3–1 cm long. Mature buds obovoid or pyriform, 0.6–1 cm long, 0.5–0.7 cm wide, smooth and shiny, scar absent (both opercula shed together at flowering), operculum shallowly rounded and apiculate or not, or flattened, stamens inflexed, all fertile, anthers oblong, dorsifixed, versatile, dehiscing by longitudinal slits, style as long as the floral cavity, straight, stigma mop-like, locules 3 or 4(5), the placentae each with ca 5 vertical ovule rows or the rows indistinct; flowers creamy white.Fruit pedicellate (pedicels 0.3–1 cm long), urceolate to ± globular in outline, narrowed above to a distinct neck with the thin rim flared widely or rarely erect, 1.1–2.1 cm long, 1–1.6 cm wide, longer than wide (length 1.2–2 cm), surface smooth, disc descending vertically or sometimes obliquely, valves 3 or 4(5), enclosed.Seeds brown, 6–10 mm long, ellipsoidal with terminal wing, hilum ventral. Cultivated seedlings (measured at ca node 10): cotyledons large, reniform; stems rounded in cross-section, sparsely setose with long bristle-glands only for basal 3–5 nodes then glabrous, or sometimes virtually glabrous throughout; leaves always petiolate (petioles to 0.9 cm), opposite for at least 14 nodes but with occasional leaf pair sub-opposite, elliptical to ovate or oblong, sometimes broadly lanceolate, 5.5–12.5 cm long, 2–4 cm wide, base ± tapering to petiole, apex pointed or rounded, green, sparsely setose on both surfaces but especially on margins and midrib and then only to leaf-pair 3, glabrous thereafter.
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Tree to 15 m. Bark tessellated, red-brown or grey-brown throughout. Juvenile leaves shortly petiolate, ovate or oblong-lanceolate, slightly hairy or setose, pale green. Adult leaves alternate, narrowly to broadly lanceolate, acuminate, thin; lamina 7–17 cm long, 2.3–3.5 cm wide, grey-green, slightly discolorous; lateral veins faint, at 50°–60°; intramarginal vein confluent with margin; petiole channelled, 10–25 mm long. Umbels 3–7-flowered; peduncle terete, 7–15 mm long; pedicels 5–8 mm long. Buds ovoid or pyriform; operculum saucer-shaped or depressed hemispherical-conical, 1–2 mm long, 3–5 mm wide; hypanthium hemispherical, 4–6 mm long and wide. Fruits ovoid, urceolate or globular, 13–20 mm long, 10–15 mm wide. Seeds broadly winged, yellow-brown.
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