Plants (200-)300-600 mm high. Corm globose, 12-22 mm diam., often with small cormlets at base; tunics of fine to fairly coarse fibres. Stem erect, simple or with 1(2) branches, usually flexed above sheath of uppermost leaf. Leaves 6 to 8, lower 3 to 5 basal, reaching ± to base or slightly exceeding spike, linear, 1-3 mm wide, elliptic in section when alive, midrib area thickened, margins rarely lightly thickened, cauline leaves progressively smaller, uppermost entirely sheathing or with vestigial blade. Spike inclined, lightly flexuose, 4-to 12-flowered; bracts green or flushed purple above, outer 12-16(-20) mm long, inner shorter to ± as long, notched apically. Flowers white to cream-coloured or yellowish, reverse of upper tepals usually flushed pink to dull purple toward tips, sometimes also on midline, sometimes lower 3 tepals each with short, pale mauve streak, often sweetly scented; perianth tube obliquely funnel-shaped, 6-13 mm long, slender cylindric part 3-6 mm long; tepals oblanceolate, unequal, dorsal largest, 20-26(-30) x 10-13(-18) mm, hooded over stamens, upper laterals 16-20(-23) x 8-9 mm long, curving outward distally, lower 3 tepals joined to upper laterals for 1-2 mm and together for ± 2 mm, lower laterals 16-20 x 6.5-13.0 mm, lower median ± as long or slightly shorter and wider or narrower than laterals. Filaments 10-13 mm long, exserted 6-8 mm from tube; anthers 6-9 mm long, purple; pollen cream-coloured. Style arching over stamens, dividing shortly below anther apices, branches 3.5-5.0 mm long. Capsules ellipsoid, 10-15 mm long. Seeds oblong, 5-6 x ± 3 mm, broadly but somewhat unevenly winged.
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Perennial herb, geophyte, 0.3-0.6 high; corm globose; stem erect, simple or 1-or 2-branched. Leaves 6-8, linear, 1-3 mm wide; midrib thickened, margins rarely lightly thickened. Bracts green, sometimes flushed purple above. Inflorescence a 4-12-flowered spike, inclined, lightly flexuose; flowers white to cream-coloured, reverse of upper 3 tepals flushed pink to dull purple toward apex and midline; lower tepal with short, pale mauve streaks near base; perianth tube obliquely funnel-shaped; tepals oblanceolate, unequal; dorsal largest, hooded over stamens, directed forward. Stamens exserted; anthers purple; pollen cream-coloured. Ovary ovoid; style arching over stamens. Flowering time Aug.-Apr. Capsule ellipsoid.
Cormous geophyte, 30-50 cm, tunics fibrous. Leaves linear, thickened in midline, whip-like. Flowers many in slender spikes, short-tubed, bilabiate, white or flushed lilac.