Plants 50–100 cm. Corms tunicate, ca. 20 mm diam.; tunic coriaceous, fragmenting into irregular pieces, rarely ultimately becoming fibrous. Stems simple. Leaves ± reaching base of spike; blade plane, lanceolate, sometimes narrowly so, 5–22 mm wide. Spikes 10–20-flowered; spathes unequal, outer 25–35(–50) mm, inner ± 2/3 outer. Flowers unscented, weakly distichous; perianth tube obliquely funnel-shaped, 10–12 mm; tepals reddish purple with narrow median white streak on outer 3 tepals, unequal, dorsal tepal 30–40 × 14–19 mm, inner lateral tepals joined to outer tepals for ca. 3 mm, 28–35 mm, outer 3 tepals connate for ca. 2 mm, outer lateral tepals 18–25 mm, outer median tepal 24–28 mm; filaments 12–15 mm; anthers 10–13 mm; style branching opposite distal 1/3 of anthers; branches ca. 2 mm. Capsules oblong, 18–24 mm. Seeds broadly winged, 4–6 mm diam.
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