It is an erect shrub with sharply-pointed, egg-shaped leaves with serrated edges, and off-white, bell-shaped flowers streaked with purple.

Pityrodia serrata is an erect shrub that typically grows to a height of up to 1 m (3 ft 3 in) and has branches densely covered with star-shaped hairs.

The sepals are 6.0–7.5 mm (0.24–0.30 in) long and joined for half their length forming a bell-shaped tube with five lance-shaped, sharply-pointed lobes.

[2] Pityrodia serrata was first formally described in 1979 by Ahmad Abid Munir from a specimen collected near the Nabarlek mining camp in 1973.

[2][5] Pityrodia serrata is classified as "near threatened" under the Territory Parks and Wildlife Conservation Act 2000.