A herb. It grows 40-80 cm high. The roots are slightly fleshy with large swollen tubers near the tip. These are 0.8-1.5 cm long and 2.5-5 cm wide. The leaves are narrow and 45-50 cm long by 6-8 mm wide. They are usually folded and the base is surrounded by the fibrous remains of older leaves. The flowering stalk has 3-7 branches with groups of 2-3 flowers and one with 2-20 flowers. The flowers are small and open during the day. They are orange.