It is an erect shrub with hairy, heart-shaped or egg-shaped leaves, and white, tube-shaped flowers.

There are leaf-like bracts and linear bracteoles 3.5–5 mm (0.14–0.20 in) long at the base of the flowers.

The five petals are white, 8–10 mm (0.31–0.39 in) long and joined at the base to form a more or less cylindrical tube with two "lips".

[2] Pityrodia spenceri was first formally described in 1979 by Ahmad Abid Munir from specimens collected by Walter Baldwin Spencer and others near Edith Creek in 1911.

[4] Pityrodia spenceri is listed as "least concern" under the Territory Parks and Wildlife Conservation Act 2000.