Plants densely tufted, with small growing point. Roots swollen, fusiform, tuberous. Leaves linear, 10--35(--60) cm × 2--8 mm, veins 2 or 3, base surrounded by brown fibers. Flowering stems sometimes shortly 1-branched, 10--25 cm × 2--3 mm; spathes 3, green, lanceolate, 4.5--9.5 cm, 2-flowered. Flowers violet or pale blue, 2.5--6 cm in diam. Perianth tube 2.5--3 cm; outer segments spreading, obovate, 2.5--4 × 0.8--1.8 cm, crest central, yellow, low, undulate; inner segments erect, narrowly elliptic, 2.5--4 × 0.5--1.2 cm. Stamens 1.5--2.5 cm; anthers yellowish white. Style branches 2--3.5 cm. Capsule ellipsoid to ovoid, 2--3.5 × ca. 1 cm, apex shortly pointed. Fl. Jun, fr. Jul--Aug. 2 n = 24.
Drier inner valleys, 1800-4000 metres. Grassy hillsides on plateaux, open stony pastures and cliffs at elevations of 2800-3100 metres.
Can be grown by seedlings. Seeds needs stratification.
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