Shrub 1–3 m. tall; stems glabrous, swollen and jointed at the nodes.. Leaves aromatic, ovate to elliptic-ovate, (8–)13.5–19.5 cm. long, (4.3–)9.5–14.2 cm. wide, acuminate at the apex, truncate to cordate at the base, glabrous above and beneath save for some pubescence at base of nerves beneath; nerves 7–9, palmate; petiole1.3–3.5 cm. long, channelled, pubescent.. Female spikes white turning green, (8–)14.5–23 cm. long, 6 mm. wide; peduncles 2–3.5 cm. long, glabrous; peltate floral bracts round to ± triangular, ± 1 mm. wide, glabrous but hairs from base of ovary projecting and resembling ciliae. Ovary subglobose; stigmas 2.. Undoubted male or hermaphrodite spikes not seen.. Fruit green, globose, 1.5–2 mm. wide when dry, with distinct short cylindrical style, 0.3 mm. long, visible in ± immature fruits, and ± globose stigmas 0.2 mm. long.