Rhizomes extensive, 6-8 mm. in diameter; scales coriaceous, reddish brown, ± 3.5 × 1.5 cm.. Leafy shoots 2-3 m. tall.. Leaves narrowly elliptic, acuminate, somewhat asymmetrically rounded to cuneate at base, 25-33 × 4.5-8 cm., pubescent on the midrib beneath; nerves 22-27 per 5 mm. beneath, 20-23 per 5 mm. above; ligule coriaceous, rounded, sparsely pubescent, 3-6 mm. long.. Inflorescences 2-3-flowered, borne on the rhizomes between the leafy shoots; peduncles 3-5 cm. long, the bracts broadly ovate, retuse and mucronate at the apex, sparsely appressed pubescent, and ciliolate at the apical margin, the apical ones up to 3.5 × 3 cm.. Calyx spathaceous, 4-5 cm. long, split ± 1.5 cm. at one side.. Corolla white; posterior petal oblong, concave, ± 5.5-6 × 2.5-2.8 cm.; laterals narrowly triangular, ± 5.5 × 0.5 cm.. Labellum white with a basal yellow patch, 9-10 cm. long, the free portion suborbicular, ± 6 cm. diameter.. Free filament ligulate, ± 3 cm. long; anther subterminal, ± 15 mm. long, the basal 10 mm. dehiscent; apex 3-lobed, the terminal lobe oblong, rounded or retuse, 6-7 × 4 mm., the laterals narrowly triangular, ascending, ± 6 mm. long.. Ovary glabrous; style glabrous; stigma trumpet-shaped, appressed-pubescent outside.. Fruit and seeds not certainly known but see below.
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A ginger family herb. It grows 2-3 m high. It has large underground stems of rhizomes that produce leafy shoots. The leafy shoots are 2-3 m tall. The leaves are 30-45 cm long by 10 cm wide. There are 2-3 flowers together coming from the rhizome. They are white with a yellow patch in the centre. They are on stalks 2-4 cm long. The bracts are bronze coloured. The fruit are oval and 5 cm long. The seeds are smooth and shiny and narrowly oval. They are 5-6 cm long by 3 cm wide.
It is a tropical plant. It grows in the understorey in forests. It occurs between 1,300-1,550 m above sea level.
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An understorey plant in forests.
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