Leaves grayish green, linear, 15--25 cm × 3--4 mm at anthesis, ca. 45 cm × 6 mm in fruit, midvein absent, base surrounded by maroon-red, persistent sheaths. Flowering stems not emerging above ground; spathes 3 or 4, green, lanceolate, 8--12 × 1.2--2 cm, 2-flowered, midvein distinct, apex acuminate. Flowers violet 6--7.5 cm in diam.; pedicel filiform, 1.5--2 cm. Perianth tube 7--9 cm, slender, apex somewhat expanded; outer segments narrowly oblanceolate, 4--5.5 cm × ca. 5 mm; inner segments narrowly oblanceolate, 4--5 cm × ca. 5 mm, sparsely papillose along midvein. Stamens 2.8--3.5 cm; anthers blue. Ovary 1.3--1.5 cm. Style branches linear, 3.5--4 cm × ca. 3 mm. Capsule not seen. Fl. Apr, fr. Jun--Aug.
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