Cormous geophyte, 40-150 mm tall, corm with a flat base, with spiny margins. Leaves linear or falcate, thickened in midline. Flowers 3-6 per spike, nodding, white to cream, brown or red outside, open at night, then fragrant, perianth tube curving downward, tepals weakly recurving, bract margins united near base around spike axis.
Cormous geophyte, 4-15 cm, corm with a flat base. Leaves linear, slightly fleshy. Flowers nodding on a recurved tube, cream-coloured, brown or red on outside, bracts ± fused below around spike axis.