Herb 15–40 cm high. Corm c. 1 cm diam.; tunic of overlapping scales. Basal leaves falcate to linear, 5–14 cm long, 3-8 mm wide, glabrous, with several prominent veins. Scape erect, wiry, simple or few-branched. Cauline leaf solitary, short, sheathing. Spike distichous, slightly flexuose, 4–10-flowered. Flowers erect, actinomorphic. Outer bracts broadly ovate, 8–12 mm long, herbaceous; inner bracts narrower, 7–11 mm long, ± membranous. Perianth tube straight, 5–9 mm long; lobes elliptic, 10–15 mm long, white to cream; sepals reddish on reverse. Stamens erect; filaments 3–4 mm long; anthers exserted, 4–5 mm long, cream. Ovary ovoid, 3–4 mm long, dark; style branches 5–7 mm long. Capsule 7–9 mm long, sheathed by spathes. Seeds c. 0.8 mm diam., dark brown.
Perennial herb, geophyte, 0.08-0.25 m high; corm ± symmetric, campanulate to triangular, base flat, tunics imbricate; stem erect, single or 3-5-branched. Leaves 3 or 4(5), falcate or erect and ensiform, obtuse, margins slightly thickened, hyaline. Bracts herbaceous, reddish, becoming dry at apices. Inflorescence a (1-)3-8-flowered spike; flowers salver-shaped, white, pale to deep yellow or cream-coloured, outer tepals flushed red, pink or brown on reverse; perianth tube cylindric, 4-9 mm long; tepals subequal, 12-18 x 5-7 mm, ovate to elliptic. Stamens up to 12 mm long. Ovary 2-3 mm long; style branches 6 mm long. Flowering time Aug., Sept. Capsule obovoid, 7-10 mm long.
Cormous geophyte, 6-30 cm, corm with a flat base. Leaves sword-shaped to falcate. Flowers white or yellow, red to brown on reverse, fragrant.