Chiloglottis trapeziformis Fitzg.

Leaves 50–80 × 15–25 mm. Flower stem 80–120 mm long. Flower stiffly erect, 12–16 × 6–8 mm, greenish to brownish or purplish; calli black, shiny; column whitish with red flecks. Dorsal sepal narrowly spathulate, 12–14 × 3–4 mm; apical club c. 1 mm long. Lateral sepals widely divergent beside labellum, 13–15 × 2.5 mm; apical clubs c. 2 mm long. Petals decurved, 8–11 × 3–4 mm. Labellum erect, diamond-shaped, 8–12 × 6–8 mm, margins flat, apex broadly rounded. Callus short, resembling head of an ant, restricted to basal quarter of labellum. Column 8–10 × 4–4.5 mm.

It is a temperate plant. It grows on coastal scrub on soils rich in humus. It also grow in shady damp forest. It does best in rich, moist, well-drained soils in a protected shady position.

Plants can be grown by dividing the clump.