Plants erect, 0.17-0.32 m high. Leaves: lower leaf with petiole 25-80 mm long, blade cordate, broadly ovate, shortly acuminate, 60-90 x 40-70 mm; upper leaf smaller. Inflorescences laxly, 4-20-flowered. Flowers white, up to 10 mm in diam. Sepals unequal, margins crenate; median sepal reflexed, narrowly oblong, acute, 4 mm long; lateral sepals rhomboid, 4.0-4.5 x 3.5 mm. Petal erect, spathulate, claws 1 mm long, basally fused to sepals, blades ovate, shallowly saccate, margins finely lacerate, 4-5 mm long. Lip broadly angulate-ovate, outer margins fimbriate, 6 x 5 mm. Flowering time Jan.-Mar.