[3][4] Dicrastylis rugosifolia is a dense sprawling shrub, growing to 35 cm high.

Its stems are roughly circular in cross section.

The opposite and entire leaves are 4–7 mm long by 0.8-1.5 mm wide, and have branched (dendritic) hairs, and a blistered, puckered surface.

The calyx has five lobes (1.7–2 mm long), covered in dendritic hairs, and the white or cream corolla is 3–4 mm long, with no dots or stripes in its throat.

[5] It is found in the IBRA regions of Avon Wheatbelt, Coolgardie, and the Geraldton Sandplains.