Tree to 10 m tall or mallee. Forming a lignotuber. Bark smooth throughout but often appearing scaly with partly shed plates or flakes of red-brown bark over white to pinkish yellow or pale orange. Branchlets lacking oil glands in the pith. Juvenile growth (coppice or field seedlings to 50 cm): stems rounded to square in cross-section; juvenile leaves shortly petiolate, sub-opposite at lower nodes, then alternate, ovate, 3–9 cm long, 1–3.5 cm wide, dull, light green. Adult leaves thin, alternate, petioles 0.5–1.5 cm long; blade narrowly lanceolate to falcate, (5)6.5–10(11) cm long, (0.7)1–1.7 cm wide, base tapering to petiole, margin entire, apex acute, slightly glossy, green, side-veins greater than 45° to midrib, reticulation dense, intramarginal vein close to margin, oil glands scattered, mostly intersectional. Inflorescence axillary unbranched, peduncles 0.7–2 cm long, buds 7, pedicellate (pedicels 0.1–0.7 cm long). Mature buds globular to ovoid (0.6–1.1 cm long, 0.5–1 cm wide), scar present, operculum rounded and sometimes apiculate, stamens inflexed, anthers oblong, versatile, sub-basifixed, dehiscing by longitudinal slits, style long and straight, stigma tapered to blunt, locules 3, 4 or 5, the placentae each with 4 vertical rows of ovules but may appear to have five rows near base of cluster. Flowers white. Fruit pedicellate to rarely sessile (pedicels 0–0.6 cm long), hemispherical, 0.7–1.4 cm long, 1.1–1.6 cm wide, with prominent thick sloping rim (scar of inner operculum) and disc that maybe level to ascending or even slightly descending, valves 3, 4 or 5, exserted. Seeds grey-brown to brown, 1–2.5 mm long, flattened-ovoid, dorsal surface shallowly reticulate, hilum ventral. Cultivated seedlings (measured at node 10): cotyledons Y-shaped (bisected); stems square or rounded in cross-section; leaves opposite, linear to narrowly elliptical and shortly petiolate at first, becoming alternate after 7 to 9 nodes, petiolate, ovate to lanceolate, 3–7.5 cm long, 1–2.5 cm wide, dull to slightly glossy, grey-green; apical growth slightly glaucous but not persisting.
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Tree to 12 m. Bark smooth, white or pink-yellow, but often with deciduous red-brown flakes adhering on much of trunk. Juvenile leaves not seen. Adult leaves alternate, lanceolate, falcate, uncinate; lamina 7.5–13 cm long, 1–1.5 cm wide, green to grey-green; lateral veins faint, at 35°–45°; intramarginal vein almost confluent with margin; petiole terete, 8–10 mm long. Umbels 3–7-flowered; peduncle terete, 10–18 mm long; pedicels 4–5 mm long. Buds ovoid; operculum hemispherical, often shortly pointed, 3–5 mm long, 5–8 mm wide; hypanthium hemispherical, 4–8 mm long, 5–8 mm wide. Fruits shallowly hemispherical, 8–10 mm long, 11–14 mm wide; disc convex; valves 4 or 5, strongly exserted. Seeds orbicular to elliptic, red-grey-brown.