Leaves spirally arranged; lamina subobovate to obovate, 6–15 x 2–5 cm., chartaceous to subcoriaceous when dry, apex acute to obtuse, base cuneate to obtuse or cordate, margin entire, sometimes coarsely dentate; superior surface scabrous, the inferior scabrous and partly puberulous, (mainly so on the veins) or minutely puberulous to yellowish-hirtellous; venation impressed and conspicuous above, lateral veins 6–10 pairs; petiole 5–15 mm. long, 1–3 mm. thick; stipules narrowly triangular to subulate, 2–4.5 mm. long, usually persistent.
Inflorescences solitary or sometimes in pairs; peduncle 5–12 mm. long; receptacle ± zygomorphic, discoid and plane, elliptic to subcircular or multiangular in outline, 2–3 x 1.2–1.5 cm.; margin 3–5 mm. wide, with conspicuous radiating stripes; appendages in 1 row, primary (terminal) appendages 2, linear to spathulate, 5–7 mm. long; secondary (lateral) appendages numerous, tooth-shaped, up to 4 mm. long.
Herb up to 1 m. tall, rhizomatous; stems erect or ascending, unbranched, up to c. 5 mm. thick, minutely puberulous to yellowish-hirtellous, the lower part woody.
Pistillate flowers less numerous; perianth tubular; stigmas 2.
Endocarp body tetrahedral, c. 2.5 mm. in diam., tuberculate.
Staminate flowers ± crowded; perianth lobes 2–3.