It has a single tubular, green leaf and up to thirty scented, light brown flowers with a whitish labellum.

[2][3][4] Prasophyllum secutum was first formally described in 1998 by David Jones from a specimen collected on Anthony Beach near Smithton and the description was published in Australian Orchid Research.

[1] The specific epithet (secutum) is a Latin word meaning "followed"[5] referring to this species flowering more prolifically after fire.

[3][4] The total number of mature plants of P. secutum is difficult to estimate because they only flower after fire and many populations have not been observed for several decades.

The main threats to the species are land clearing, habitat disturbance, inappropriate fire regimes and small population size.