It is an erect shrub with linear leaves and yellow-orange flowers arranged near the ends of branchlets.

Pultenaea campbellii is an erect shrub that typically grows to a height of up to 1 m (3 ft 3 in) and has stems covered with soft hairs pressed against the surface.

The flowers are borne near the ends of the branchlets in dense groups with leaves with enlarged stipules at the base of the head.

[2][3] Pultenaea campbellii was first formally described in 1899 by Joseph Maiden and Ernst Betche in Proceedings of the Linnean Society of New South Wales from specimens collected by John Fauna Campbell at "Grave-yard Creek, near Walcha" in 1898.

[4] This pultenaea grows in forest between Glen Innes and Nundle in the New England Tableland of northern New South Wales.