Perennial herb, geophyte, 0.35-0.70 m high; corm globose, tunics grey-brown, fine to coarsely reticulate; stem simple. Leaves ensiform, 3-15 mm wide, margins and midribs thickened. Inflorescence a dense spike; flowers deep red with darker streak in lower half of lower tepal; perianth tube cylindric above, 20 mm long; tepals lanceolate, 20-22 mm long. Stamens unilateral, arcuate below upper tepal; anthers 9 mm long. Ovary globose; style arching over filaments. Flowering time Nov.-Feb.