Leaf blades 3–13(15) × 1–5(8) cm, ovate-lanceolate to asymmetrically rhombic-lanceolate, acuminate at the apex, tapered to a narrowly cordate base, crenate-serrate on the margin, sometimes subentire towards the base, firmly membranous, 3–5-nerved from the base, sparingly pubescent or pilose on both surfaces and more evenly so on the midrib and main nerves beneath, pale to mid green; lateral nerves in 5–7 pairs.
Female spikes 2–7 × 1 cm, terminal, cylindric, on a peduncle up to 7 mm long; bracts accrescent to 6–12 × 7–13 mm, transversely-ovate, pilose, eglandular, green, 1-flowered, 7–17-toothed, the teeth narrowly lanceolate, c. one-third to half the length of the bract.
Female flowers ± sessile; sepals 3, c. 1 mm long, ovate, pubescent; ovary c. 1 mm in diameter, 3-lobed, densely pubescent; styles free, 5 mm long, laciniate, crimson to maroon.
A deciduous, much-branched, straggling or scrambling, slender-stemmed shrub or small tree up to 5 m tall, pubescent or pilose; branches over-arching and pendent.
Male flowers: pedicels 0.5 mm long; buds tetragonal, pubescent, greenish-or reddish-brown; anthers cream-coloured.
Male racemes 5–6 cm long, axillary, solitary, scarcely pedunculate, sometimes galled.
Stipules 2–9 mm long, linear-lanceolate, long-acuminate, chestnut-brown.
Seeds 1.8 × 1.4 mm, ovoid, ± smooth, purplish-grey.
Fruits 1.5–2 × 2.5 mm, 3-lobed, pubescent.
Petioles 2–10(25) mm long.
Plants monoecious.