Herb growing on steep slopes above river in moderate to deep shade, 1,6 m tall. Leaves dark green above, midrib olive green, grey green below, midrib yellow green below. Pulvinus olive green, incurved, slightly markledy articulate, running into the midrib. Petiole green, leaf sheaths green above tinged reddish basally, swollen and white at the very base. Basal inflorescence brachs reddish, apical bracts greenish. Ovary white, tuft of hairs at base. Sepals 3,7 cm long, membranaceous, translucent white, Tube cream, petals purple, brown, outer staminode yellow, style and stigma yellow. Cucullate staminode yellow, callose staminode yellow at the base, upper half tinged purple, entirely callose. Infl. fascicled.