Foliage leaves 3–4, at least the lower 1–2 inserted at or below ground level, these longer than the others and usually slightly longer than the stem, occasionally shorter, (1.8)3–4.5 mm wide, linear, the midrib and margins hyaline and strongly thickened, margins raised at right angles to the surface; the upper 1–2 leaves cauline, shorter than the basal leaves, the uppermost sometimes entirely sheathing.
Spike 10–16-flowered, secondary spike with fewer flowers; bracts green, 12–14(16) mm long, the inner usually shorter than the outer.
Style dividing between the middle and apex of the anthers, style branches 2.5–3 mm long.
Corms 15–20 mm in diameter, obconic; tunics of fairly fine vertical fibres.
Filaments 12–14 mm long, exserted for 8–10 mm; anthers c. 6.5 mm long.
Capsules 8–10 mm long (possibly longer), obovoid.
Stem often 1(2)-branched.
Plants 25–45 cm high.