Herb, up to 0.5 m high. Leaves (2-)4, linear, conduplicate. Flowers: 5-25 in an apical head; petals expanded apically, margins crenulate, spreading, lateral sepals (6.5-)8.0-10.0 mm long, lip > 1.7 mm long; petals white to cream-coloured, with small purple spots. Jan.-Mar.