Flowers white to cream or yellow, sometimes flushed pinkish or light-mauve especially on the upper 3 tepals, or rarely uniformly mauve, pink or light-orange, lacking contrasting markings on the lower tepals; perianth tube 7–8 mm long, curving outward between the bracts, widening near the mouth; tepals nearly equal, 20–25 × (5.5)7–8 mm, directed forwards, weakly curving outward distally, hardly or not at all narrowed below into claws.
Foliage leaves 2–3, entirely sheathing or with short occasionally imbricate blades, the blades 1–8(12) cm long, lanceolate usually narrowly so, margins and midribs hyaline and usually slightly thickened; (hysteranthus foliage leaves on separate shoots are not known and are probably not produced); leaves of non-flowering plants are not known.
Filaments 4–5 mm long, usually included in the perianth tube, exserted for up to 1 mm; anthers 7–9 mm long, sometimes the bases included for up to 2 mm, minutely apiculate.
Corms (10)20–35 mm in diameter; tunics brownish, more or less coriaceous or fragmenting into coarse-to medium-textured fibres, sometimes entirely fibrous.
Spike 2–8-flowered; bracts green, or sometimes membranous or dry above, 18–25 mm long, the inner somewhat shorter than the outer and apically bifid.
Style dividing toward the anther apices, style branches 3.5–4 mm long.
Stem erect, unbranched, usually straight.
Capsules 10–12 mm long, globose.
Plants 30–60 cm high.