Cormous geophyte up to 30cm. Leaves linear to sword-shaped, softly hairy on margins, midrib and secondary veins. Stem bearing a scale-like leaf up to 5mm long below the spike. Flowers white, opening in evening and sweetly scented, or blue to purple opening in the day and unscented. Perianth tube 6-10mm long, tepals spreading; bracts green.