Mallee to 5 m tall, usually with many long, thin, erect stems. Forming a lignotuber. Bark smooth throughout, grey to grey-brown. Branchlets glaucous; oil glands present in the pith. Juvenile growth (coppice or field seedlings to 50 cm): stems square in cross-section and prominently winged, glaucous, sometimes hairy on the lower stems, leaves petiolate, opposite, ovate to oblong to elliptical to cordate, glaucous to grey-green, 10–12 cm long, 6–6.5 cm wide, apex acute to rounded, base lobed to truncate to rounded, lamina sometimes hairy on the lower leaves, margins entire sometimes irregularly toothed on lower leaves due to hairs. Adult leaves opposite to sub-opposite, petioles 0.8–2 cm long; blade broadly lanceolate to ovate to elliptical, 4.5–14 cm long, 2.5–7 cm wide, base rounded to tapering to petiole, concolorous, dull, grey-green to glaucous, side-veins greater than 45° to midrib, reticulation sparse to moderate, intramarginal vein present, oil glands mostly island. Inflorescence axillary single, peduncles broadly flattened, (0.5)0.6–1.8(2) cm long, buds 3, pedicellate (pedicels 0.2–0.8 cm long). Mature buds obovoid (0.8–1.3 cm long, 0.5–0.9 cm wide), hypanthium four-angled, glaucous, outer perianth whorl sepaline, inner whorl operculate, operculum rounded, stamens grouped in four clusters, inflexed, anthers oblong, versatile, dorsifixed, dehiscing by longitudinal slits (non-confluent), style short or long, stigma tapered, locules usually 3 or 4, the ovules arranged in 4 distinct vertical rows on the placentae. Flowers whitish. Fruit pedicellate (pedicels 0.2–1.2 cm long), barrel-shaped, rarely cylindrical, 1.2–2.2 cm long, 1.4–2(2.1) cm wide, usually four-angled, glaucous, disc descending, valves 3 or 4 enclosed or near the rim. Seeds dull brown to black or greyish, irregularly pyramidal in shape or somewhat flattened, with a ragged flange around the edge, 5–6 mm long, sides ribbed, surface smooth not deeply pitted, hilum ventral/terminal. Cultivated seedlings (measured at node 10): cotyledons orbicular; stems square in cross-section, glaucous and hairy, leaves petiolate, opposite, ovate to oblong to cordate, 6–7. long, 3–4.5 cm wide, glaucous, margins entire or irregularly toothed, apex rounded, base lobed to truncate, lamina hairy.
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Mallee to 3 m. Bark light brown to white or grey. Juvenile leaves and leaves of mature plants similar, opposite, broadly elliptic, apiculate, thick; lamina 7–15 cm long, 2.5–7 cm wide, glaucous or green; lateral veins prominent, at c. 50°; intramarginal vein up to 1 mm from margin; petiole 10–20 mm long, the edges continuous onto stems. Peduncle flattened or angular, 5–15 mm long; pedicels angular, 4–10 mm long. Buds clavate, quadrangular, glaucous; operculum hemispherical, striate in the shape of a cross, 3–4 mm long, c. 6 mm wide; hypanthium 4-angled, toothed at corners, 5–6 mm long and wide. Fruits subglobular, 12–18 mm long, 11–18 mm wide, glaucous; disc broad, descending obliquely; valves 4.
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