Plants densely tufted. Rhizomes knobbly, woody. Leaves grayish green, narrowly sword-shaped or linear, 17--70 cm × 2--8 mm, midvein absent, base surrounded by reddish purple, persistent sheaths and fibers. Flowering stems 10--40 cm × ca. 7 mm, 1-or 2-leaved; spathes 3, green, lanceolate, 7.5--12 × 1.6--2.5 cm, 2-flowered. Flowers whitish and violet, flattish, 7.5--9 cm in diam.; pedicel 4.5--9 cm. Perianth tube ca. 0.3 cm; outer segments spreading, fiddle-shaped, claw white or yellowish tinged, purple reticulate veined, oblong, 2.5--3 × 0.5--0.7 cm, limb whitish veined purple at center, violet at margin, oblanceolate, ca. 1.5 × 0.9 cm; inner segments spreading, violet, oblanceolate, 3.3--4.5 cm × 7--8 mm. Anthers pinkish, ca. 3 cm. Ovary distally attenuate into beak ca. 1 cm. Style branches violet, 3.5--4 cm. Capsule cylindric, 3.5--7 × ca. 1.6 cm, apex beaked. Fl. Jun--Aug, fr. Jul--Sep.
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