Common wasp orchid
It has two broad leaves and a single narrow, greenish brown to reddish flower with a black, insect-like callus covering the upper surface of the labellum.
It is a terrestrial, perennial, deciduous, herb with two leaves 30–60 mm long and 10–15 mm wide. A single greenish brown to reddish flower 30–45 mm long is borne on a flowering stem 70–100 mm high.
The dorsal sepal is spatula-shaped, 12–14 mm long, and about 2 mm wide, with a glandular tip a further 3–4 mm long.
The lateral sepals are 15–22 mm long, and curve downwards. There is a glandular tip 7–10 mm long on the end of each lateral sepal. The petals are oblong, 7–9 mm long, about 2 mm wide and turned strongly downwards.
The labellum is diamond-shaped, with a black, insect-like callus covering most of its upper surface.
Widespread on the ranges and on the coast, in moist areas of sclerophyll forest. Flowering occurs from February to May.