Mallee to 5 m tall. Forming a lignotuber. Bark smooth throughout, silvery grey and green-grey over pale brown-orange. Branchlets lacking oil glands in the pith. Juvenile growth (coppice or field seedlings to 50 cm): stems rounded in cross-section; juvenile leaves always petiolate, opposite for several nodes but soon alternate, ovate, 3.5–6 cm long, 2–3 cm wide, green or grey-green. Adult leaves alternate, petioles 1–1.8 cm long; blade lanceolate to falcate, 6.8–10.7 cm long, 0.7–1.6 cm wide, base tapering to petiole, margin entire, apex pointed, concolorous, maturing glossy dark green, side-veins at an acute or wider angle to midrib, reticulation dense, intramarginal vein close to margin, oil glands intersectional or fairly obscure. Inflorescence axillary unbranched, peduncle slender and pendulous, 0.6–1.6 cm long, buds (7)11 to 19 per umbel, slender pedicels 0.3–1 cm long sharply defined relative to the truncate base of bud. Mature buds ovoid, 1–1.5 cm long, 0.5–0.7 cm wide, the operculum 2 to 3 times the length of the hypanthium which is often dilated below the join, and always visibly but shallowly ribbed, scar present (outer operculum lost early), operculum conical and elongated but not or scarcely ribbed, stamens inflexed, anthers cuboid, versatile, sub-basifixed, dehiscing by longitudinal slits, style long and straight, stigma blunt, locules 3 or 4, the placentae each with 4 vertical rows of ovules. Flowers creamy white or rarely yellowish green. Fruit pendulous, pedicellate (pedicels 0.3–1 cm long), flattened-globose, 0.4–0.9 cm long, 0.7–1 cm wide, ribbed to weakly so, rim thick, disc more or less level, valves 3 or 4, slender and prominently exserted but fragile and easily lost. Seeds dark grey-brown to brown, 1–2 mm long, ovoid or flattened-ovoid, dorsal surface smooth to very shallowly reticulate, hilum ventral. Cultivated seedlings (measured at node 10): cotyledons Y-shaped (bisected); stems rounded in cross-section; leaves opposite for up to 14 nodes, sessile at first, becoming shortly petiolate, initially linear then narrowly elliptical for ca 7 to 12 nodes when they become ovate or occasionally orbicular, 2–4 cm long, 1–2.5 cm wide, base tapering to rounded, margin entire, apex rounded to acute, green to grey-green, dull.
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Tree to 9 m or mallee to 3.5 m. Bark smooth throughout, grey or grey-brown. Juvenile leaves broadly lanceolate, grey-green. Adult leaves lanceolate, sometimes falcate, uncinate; lamina 8–9.5 cm long, 1.5–2 cm wide, grey-green; lateral veins faint, at 35°–40°; intramarginal vein up to 1 mm from margin; petiole quadrangular, 15–20 mm long. Umbels 7–15-flowered peduncle ±quadrangular, 6–12 mm long; pedicels quadrangular, 6–8 mm long. Buds conical; operculum conical, smooth or striate, 8–10 mm long, 4–5 mm wide; hypanthium hemispherical, usually ribbed, rarely smooth, 4–6 mm long, 5–6 mm wide. Fruits hemispherical or subglobular, ribbed or smooth, 5–8 mm long, 7–10 mm wide; disc narrow to moderately broad, ascending, collar-like; valves 3–5.
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