It is a shrub growing to 2–3 m in height. The aromatic, alternate, heart-shaped leaves are 7–12 cm long and 8–13 cm wide. The flowers have no petals; the male flowering spikes are 10 cm long, the female 6 cm. The fleshy, 10 mm diameter berries are hard, red and pungently peppery when ripe. The flowering season is from September to November, with the fruit ripening from March to May.
