It has a broad egg-shaped to heart-shaped leaf and a dark purple flower with a white patch in the middle.

The labellum is tube shaped near its base, the tube about 10–15 mm (0.4–0.6 in) long, then opens into a flattened area a further 10–15 mm (0.4–0.6 in) long and broad.

There is a white patch in the centre of the labellum and the edges turn inwards and have a few short teeth.

[2][3][4] Corybas incurvus was first formally described in 1988 by David Jones and Mark Clements from a specimen collected near Tyabb and the description was published in the Kew Bulletin.

[5][6] The specific epithet (incurvus) refers to the in-turned edges of the labellum.