[1] Prasophyllum suaveolens is a terrestrial, perennial, deciduous, herb with an underground tuber and a single tube-shaped, bright green leaf which is 150–200 mm (6–8 in) long and 2–3 mm (0.08–0.1 in) wide near its reddish base.

[2][3][4] Prasophyllum suaveolens was first formally described in 1994 by David Jones from a specimen collected near Lismore and the description was published in the journal Muelleria.

[5][2] The specific epithet (correctum) is a Latin word meaning "fragrant".

[2][6] The fragrant leek orchid grows in grassland and grassy woodland on basalt plains in inland areas, but once had a much wider distribution.

The main threats to the species are weed invasion, road or rail maintenance activities and inappropriate fire regimes.