Leaves up to 50 cm long; petiole 10-25 cm long, terete in upper part; lamina broadly ovate to ovate lanceolate, acuminate, 15-25 by 6-9 cm. Floral bracts purplish. Sepals pale yellowish with purple apex, linear-lanceolate, acuminate, 2.5-2.8 cm long. Lateral petals blackish violet, linear, truncate with a fine bristle at apex, c. 8 by 1.1 mm. Label-lum blackish violet, c. 2 cm long, linear-lanceolate, acuminate. Stamens 5-6 mm long. Ovary 18 mm long including extension; style as long as stamens, slender, terete, whitish, terminating in a blackish violet, tripartite, fimbriate crest with a V-shaped stigma.
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