Tree or mallee to 6 m tall. Forming a lignotuber.Bark rough to the small branches, tessellated to fibrous, pale grey-brown over slightly darker brown.Branchlets lack oil glands in the pith; slightly scabrid or smooth.Juvenile growth (coppice or field seedlings to 50 cm): stems rounded in cross-section, hairy (setose); juvenile leaves sessile and amplexicaul, opposite, cordate, 3.5–10 cm long, 1.5–4.5 cm wide, concolorous, grey-green; lower leaves scabrid on both surfaces, prominently setose on midrib on underside only; upper leaves lack prominent setae but may still feel scabrid or be smooth. Crown leaves juvenile, opposite, sessile; blade cordate to lanceolate, 6.5–14.5 cm long, 1.8–6 cm wide, base amplexicaul, margin entire, apex pointed, concolorous, dull, green, smooth or slightly sandpapery (scabrid), side-veins at greater than 45° to midrib, reticulation very dense, intramarginal vein present, oil glands apparently absent.Inflorescence terminal compound, peduncles stout, 0.7–2.3 cm long, buds 3 or 7 per umbel, sessile or shortly pedicellate (pedicels 0–0.3 cm long). Mature buds more or less ovoid, 1–1.3 cm long, 0.7–0.8 cm wide, the surface ± smooth or slightly roughened with a few short bristle-glands, scar absent (both opercula shed together at flowering), operculum broadly conical to rounded and apiculate, rarely beaked, stamens inflexed, all fertile, anthers versatile, dorsifixed, oblong, dehiscing by longitudinal slits, style long and straight, stigma mop-like, locules 4, the placentae each with ca 7 vertical ovule rows or the rows indistinct. Flowers white. Fruit sessile or very shortly pedicellate (pedicels 0–0.3(0.5) cm long), urceolate to truncate-globose, 1.8–3.5 cm long, 1.7–3.3 cm wide, surface slightly scurfy or smooth (not bristly), disc descending obliquely to almost vertically, valves 4, enclosed.Seeds brown, 10–14 mm long, ellipsoidal with terminal wing, hilum ± ventral. Cultivated seedlings (measured at ca node 10): cotyledons large, reniform; stems rounded in cross-section, setose with bristle-glands until internode ca 9 or 10 then glabrous; leaves sessile and opposite throughout, cordate to lanceolate, 2.5–10.5 cm long, 0.8–4.2 cm wide, base amplexicaul, dull, pale green or slightly grey-green, scabrid becoming ± glabrous (smooth) after 7–10 pairs.
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Tree or shrub to 2.5 m, rarely to 8 m. Bark tessellated throughout, grey-brown. Juvenile leaves not seen. Leaves on mature trees opposite, sessile, oblong to lanceolate, acuminate, usually cordate, thick; lamina 6–11 cm long, 2–3 cm wide, grey-green, concolorous or slightly discolorous; lateral veins fine, at 50°–70°; intramarginal vein confluent with margin. Umbels 3–7-flowered; peduncle thick, 7–15 mm long; pedicels absent or up to 3 mm long. Buds pyriform; operculum hemispherical-conical, apiculate, 2–3 mm long, 6–8 mm wide; hypanthium truncate-pyriform, 7–9 mm long, 7–8 mm wide. Fruits sessile to shortly pedicellate, ovoid, globular or urceolate, 20–35 mm long, 20–30 mm wide. Seeds winged at one end, yellow-brown.
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