It is a low, spreading shrub with linear to narrowly egg-shaped leaves and dark pink flowers arranged in groups of two to five.

Guichenotia tuberculata is a spreading shrub that typically grows to 30–60 cm (12–24 in) high and wide, its new growth densely covered with white, star-shaped hairs.

[2][3] Guichenotia tuberculata was first formally described in 2003 by Carolyn F. Wilkins and the description was published in Australian Systematic Botany from specimens collected near Gillingarra in 1995.

[3][5] This species of guichenotia grows in heath and open woodland and is found in scattered roadside remnant populations near Mogumber, New Norcia and Watheroo in the Avon Wheatbelt, Jarrah Forest and Swan Coastal Plain bioregions in the south-west of Western Australia.

[3][2] Guichenotia tuberculata is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[2] meaning that it is poorly known and known from only a few locations but is not under imminent threat.