Tuberous, perennial herb. Tubers c. 15 mm long, 5–6 mm wide, c. 5–10 cm from rootstock. Leaves 6–c. 12, prostrate and c. 10–15 cm long, c. 2 mm wide, to erect and c. 40–45 cm long, 5–6 mm wide, withering after flowering. Scape simple to 3-branched and 15–17 cm long, to much-branched and 60–80 cm long; sterile bracts absent. Flowers 1 per node, pedicels spreading, 2.5–3 cm long, articulated 1–1.5 mm from flower; bracts membranous, 1–3 mm long. Perianth segments 5–6 mm long, purple. Sepals lanceolate, c. 1.5 mm wide. Petals ± circular, margins ± undulate. Anthers c. 1.5 mm long, straight; filaments c. 3 mm long, hirsute for c. 2.5 mm from anther. Ovary cylindrical, c. 1 mm long, 0.8 mm diam.; style c. 4 mm long. Capsule c. 4 mm long, 2.5–3 mm diam.; perianth at length deciduous.
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