Foliage leaves of the flowering stem 4–6, almost entirely sheathing, or the lower leaves laminate with blades 3–8 cm long, occasionally to 30 cm long and then reaching the top of the spike, linear (lanceolate), imbricate, margins and midribs hyaline and slightly thickened, upper leaves always predominantly sheathing; hysteranthus foliage leaves on separate shoots are not known and are probably not produced; leaves of non-flowering plants not known.
Corms 15–20 mm in diameter; tunics pale straw-coloured, fibrous with fibres reticulate or mostly vertical and then often thickened and claw-like below.
Spike 4–8(12)-flowered; bracts green becoming dry above, 10–14 mm long, the inner somewhat shorter than to nearly as long as the outer.
Stem erect, unbranched, usually slightly flexed above the sheath of the upper leaf.
Style dividing near the anther apices, style branches c. 2.5 mm long.
Filaments c. 8 mm long, exserted 3–4 mm; anthers c. 6 mm long.
Capsules 12–15 mm long, ellipsoid.
Plants 30–60 cm high.