Perennial herb, geophyte, 0.45-0.50 m high; corm turbinate with concentric tunics; stem erect, simple or branched. Leaves 4, straight or slightly falcate, acute, margins thickened, midrib raised, lower 2 basal, uppermost sheathing. Bracts green, sometimes with red apex. Inflorescence a 4-14-flowered spike; flowers creamy yellow; perianth tube 21-27 mm long, dilated in throat; tepals 14-20 x 4-6 mm, elliptic, subacute, open in sunlight. Stamens exserted; filaments (3-)4 mm long. Flowering time Nov., Dec. Capsule oblong.