Plants forming hard tussocks. Rhizomes knobbly. Leaves linear, 20--40 cm × ca. 3 mm, rigid, midvein absent, base surrounded by maroon-brown, persistent sheaths. Flowering stems not or only slightly emerging above ground; spathes 3, 10--15 × ca. 1.5 cm, 1-or 2-flowered, midvein distinct, apex acuminate. Flowers pale violet, veined darker, 5.5--7 cm in diam. Perianth tube filiform, to 14 cm; outer segments oblanceolate or narrowly obovate, ca. 6 × 1--2 cm; inner segments oblanceolate, 4.5--5 cm × 7--8 mm. Stamens ca. 2.5 cm. Ovary ca. 1.2 cm. Style branches ca. 4 cm × 8 mm. Capsule subsessile, reddish brown, ovoid to cylindric, 4--7 × ca. 2 cm, 6-veined, apex shortly beaked. Fl. May--Jun, fr. Jul--Sep.
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