Rhizomes not widely creeping, thick. Roots fleshy. Leaves slightly curved, 10--15 × 0.5--1 cm at anthesis, ca. 30 × 1.5 cm in fruit, veins 2--4, base surrounded by fibers, apex shortly acuminate. Flowering stems 15--20 cm, base with erect, slender, sheathlike leaves; spathes 3, green, broadly lanceolate, 3.5--5 × 1--1.8 cm, 1-or 2-flowered, apex acuminate. Flowers yellow, 4--5 cm in diam.; pedicel 6--7 cm. Perianth tube 2--2.5 cm; outer segments with brown, linear patterns, obovate, 4--4.5 × 1.5--2 cm, beard yellow, dense; inner segments erect, narrowly elliptic, ca. 3.5 cm. Stamens ca. 2 cm; anthers yellow. Ovary 1--1.2 cm. Style branches ca. 3 cm × 4--5 mm. Capsule fusiform, ca. 6 × 1.5 cm, 6-veined, apex long beaked. Fl. May, fr. Jun--Aug. 2 n = 14*, 34.
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