Rhizomes not creeping, obconical, short. Roots slender. Leaves narrowly linear, 8--13 cm × 2--4 mm, base surrounded by dense, straight fibers, apex gradually narrowed, very acute. Flowering stems not emerging above ground, 3--4 cm, slender; spathes 2, lanceolate, 3.5--4 cm × ca. 8 mm, membranous, 1-flowered, midvein distinct. Flowers yellow, 4--5 cm in diam.; pedicel very short. Perianth tube slender, 4--4.5 cm; outer segments spreading, limb obovate, ca. 4 × 1.5 cm, beard of hairs, apex rounded; inner segments erect, oblanceolate, ca. 3.5 × 4 cm. Stamens ca. 1.5 cm. Style branches ca. 3.5 cm. Fl. Apr--May.
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