A trailing or climbing puberulous perennial herb or suffrutex, from a woody rootstock; stems several, up to 80 cm long, prostrate, decumbent or ascending, pale green.Stipules 1 mm long, lanceolate.Petioles 1–25 mm long.Leaf blades 1.5–12 × 0.1–5 cm, lanceolate or linear, acute or rarely obtuse at the apex, cuneate to truncate and hastate or sagittate at the base, serrulate to denticulate or subentire on the margins, membranous, 5–7-nerved from the base, glabrescent on the upper surface, sometimes purplish-tinged; lateral nerves in 2–9 pairs.Inflorescences 1–10 cm long, usually leaf-opposed; bracts 1.5–2.5 mm long, narrowly elliptic-lanceolate, sublobate.Male flowers: pedicels 2 mm long, jointed; calyx lobes 1–1.5 mm long, ovate, acute, glabrous, greenish-cream or yellowish; stamens 10–18, minute, filaments broadened at the base, anthers 0.3 mm across.Female flower: pedicel 1–2 mm long, extending to 1–2 cm in fruit; sepals 2 mm long, elliptic-ovate, acute, sparingly pubescent; ovary 1 mm in diameter, 4-winged, densely strigose; stylar column 1 mm tall, stigmas 1.5–2 mm across, minutely papillose.Fruit 0.75 × 1.5–2 cm, cross-shaped when viewed from above, the cocci horned, rugulose, sparingly strigose-pubescent, green.Seeds 6 × 3 mm, lenticular, rounded-triangular in outline, irregularly winged, pale green.