Flowering stem erect, 8–15 cm tall, slender, without sheathing bract. Leaf ovate, 1.5–2 cm long, 4–10 mm wide, green above, purplish below. Flower usually solitary, yellowish-green to reddish-brown; ovary straight or humped; dorsal sepal closely following curve of column, channelled, narrowly obovate to spathulate, 7–10 mm long; lateral sepals down-curved in direction of upper margins of column wings, distal end bent or curved away from column, channelled, linear-lanceolate, c. 7 mm long; petals lying against the column wings, thread-like, obtuse, c. 7 mm long. Labellum claw strap-like, curved, to 5 mm long, attached towards base of inflated part of lamina; lamina ovate, to 10 mm long, centre inflated and hollow, cavity open below, apex prolonged into beak-like extension, base with a triangular point, upper surface densely warty only in apical third, under-surface smooth. Column broadly winged from anther to distal end of c. 3 mm long foot, cupped. Flowers Nov.–Dec.
An extremely rare species known from only 2 sites, one in the Grampians National Park, the other on private property abutting the Grampians National Park.
