Tree to 10 m tall. Forming a lignotuber.Bark smooth throughout or with some persistent rough, grey bark on lower trunk; smooth bark predominantly dark grey, at times with ribbons of decorticated bark in the upper branches.Juvenile growth (coppice or field seedlings to 50 cm): stem rounded in cross-section; juvenile leaves opposite for many pairs, sessile, elliptical to ovate or lanceolate, 1.6–4 cm long, 0.9–1.3 cm wide, green. Crown characteristically retains large numbers of juvenile leaves, with some petiolate, lanceolate intermediate and adult leaves. Crown leaves opposite or alternate, petiole 0–0.5(1) cm long; blade elliptical to lanceolate, 3–8 cm long, 0.5–1.5 cm wide, base tapering to petiole, concolorous, dull, green, side-veins greater than 45° to midrib, moderately reticulate, intramarginal vein parallel to and just within margin, oil glands mostly island.Inflorescence axillary unbranched, peduncles 0.2–0.7 cm long, buds 7 per umbel, sessile (sometimes central bud with 0.1 cm pedicel). Mature buds ovoid to obovoid or fusiform, smooth or slightly warty, 0.4 cm long, 0.2–0.3 cm wide, scar present, operculum conical to rounded, stamens irregularly flexed or inflexed, anthers cuboid to globoid, versatile, slits separate, style short, stigma blunt, locules 3 or 4, the placentae each with 4 vertical ovule rows. Flowers white.Fruit sessile or rarely pedicel 0.1 cm long, cup-shaped, 0.3–0.4 cm long, 0.3–0.5 cm wide, disc raised-convex or annular to level or descending, valves 3 or 4, near rim level.Seeds dark brown, 1–1.5 mm long, ovoid or flattened-ovoid, often lacunose, dorsal surface smooth, hilum ventral. Cultivated seedlings (measured at ca node 10): cotyledons bilobed; stems square to rounded in cross-section; leaves sessile and opposite for many pairs, ovate, 1.5–2.5 cm long, 1–2 cm wide, base stem-clasping, margin entire, apex pointed, dull, green.
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Tree to 9 m. Bark smooth throughout, dull, grey, grey-green or sometimes pink. Juvenile leaves opposite, sessile, elliptic, green, slightly discolorous or concolorous, often persisting on mature trees. Adult leaves subopposite, lanceolate, acute; lamina 5–7 cm long, 0.6–1 cm wide, green; lateral veins faint, at 15°–20°; intramarginal vein up to 1 mm from margin; petiole more or less flattened, 2–6 mm long. Umbels 7-flowered; peduncle terete, thick, 4–7 mm long; pedicels absent. Buds ovoid; operculum conical, 1–2 mm long, 2–3 mm wide; hypanthium hemispherical, 2–3 mm long and wide. Fruits hemispherical to obconical, 3–4 mm long and wide; disc slightly ascending; valves 3 or 4, level.
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