Rootstock large, hard, yellow inside, with strong aromatic ginger like taste. Leaves sessile, oblong, acuminate, glabrous, base narrowed. Flowering axis long, clothed with obtuse sheaths. Flowers pale yellow, bracts 2.5-3 cm long, ovate-oblong. Corolla tube 3 cm long, lobes ovate-lanceolate, lip shorter than corolla lobes, trifid. Capsules ellipsoid.