Rhizomes indistinct. Roots fleshy. Leaves grayish green, narrowly linear, 15--25 cm × 2--3 mm, veins 2 or 3, base surrounded by brown fibers. Flowering stems simple or 1-branched, 6--14 cm; spathes 3, green, narrowly lanceolate, 2.5--4.5 cm × 6--8 mm, 2-flowered, apex acuminate. Flowers violet, ca. 5 cm in diam. Outer perianth segments obovate, limb 3.5--4 × ca. 1.5 cm, with a crest; inner segments narrowly ovate or broadly lanceolate, ca. 3.5 × 1.5 cm. Style branches broad, ca. 4 × 1.5 cm; terminal lobes incurved toward center of flower. Fl. May--Jun, fr. Jul--Sep.
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