Perennial herb, geophyte, 0.15-0.25 m high; corm symmetrical, ± campanulate, base oblique or flat, tunics imbricate, unbroken or notched below; stem erect, unbranched. Leaves 3 or 4, linear, erect, ± succulent, rarely falcate. Bracts imbricate in bud. Inflorescence a 6-15-flowered spike, straight, secund; flowers creamy white or greenish, usually with reddish brown to purple on reverse of outer tepals, recurved; perianth tube 10-18 mm long; tepals 7-15 mm long, slightly reflexed when fully open, ovate-lanceolate. Stamens up to 11 mm long; anthers usually pendent. Ovary 4-5 mm long. Flowering time Aug.-Dec. Capsule narrow, dehiscent in top 1/3.
Cormous geophyte, 200-400 mm tall, corm with oblique flat base. Leaves short, linear, fleshy, thickened in midline. Flowers several in a straight, secund spike, nodding, white to pale yellow, red to brown outside, open at night, then fragrant, perianth tube curving downward, tepals reflexed, bract margins united below around spike axis.
Cormous geophyte, up to 400 m high. Leaves with blade short, linear, fleshy. Flowers: nodding; in a 5-10-flowered spike; bract margins united around stem for ± half its length; perianth with tube curved, 8-15 mm long, slightly exceeding bracts, segments white to cream-coloured, red to brown on reverse; Nov.-Jan.
Cormous geophyte, 20-40 cm, corm obliquely flattened below. Leaves short, linear, fleshy. Flowers nodding, tube recurved, white to cream-coloured, red to brown on reverse, bract margins fused below around spike axis.
A herb. The leaves are soft and grass-like. They are 4 mm wide and have long sheaths. The flowering shoot is 90 cm tall. The flowers are well spaced. They are usually all turned to one side.
Cormous herb, up to 0.6 m high. Bract united round stem for ± half its length. Spike 6-15-flowered. Perianth tube curved, 10-18 mm long, slightly exceeding bracts.