Perennial herb, geophyte, 0.6-1.0 m high, solitary; corm tunics unbroken, coriaceous; stem erect, simple. Leaf 1, linear, canaliculate below, often flat above. Spathes herbaceous, inner longer. Inflorescence with yellow, cream-coloured or white flowers; nectar guides bright yellow, edged with purple veins; tepals lanceolate, outer 40-75 mm long, obtuse, reflexed, inner up to 60 mm long, with tapering base, obtuse to retuse. Stamens: filaments ± 10 mm long, united for ± half their length; anthers ± 10 mm long. Ovary 20-30 mm long, linear; style branches up to 20 mm long; crests 10-20 mm long. Flowering time Dec.-May. Capsule cylindric.