It is an erect shrub with hairy foliage, pinnate leaves with five to seven leaflets, and uniformly yellow, pea-like flowers.

The leaves are pinnate, arranged alternately along the branches, 10–20 mm (0.39–0.79 in) long with five to seven hairy leaflets appearing cylindrical, but with the edges curved downwards and one or two grooves along the lower surface.

Flowering occurs from July to January and the fruit is a cylindrical pod.

[2] Gompholobium tomentosum was first formally described in 1805 by Jacques Labillardière in Novae Hollandiae Plantarum Specimen.

[2] Gompholobium tomentosum is classified as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.