It is a spreading, dwarf shrub with hairy new growth, more or less linear leaves with the edges turned down, and pink flowers arranged in groups of six or seven.

The five mauve to pink, petal-like sepals are 6.5–10 mm (0.26–0.39 in) long and joined at their base, and there are tiny, deep red petals and narrowly triangular staminodes.

[2] Guichenotia impudica was first formally described in 2003 by Carolyn F. Wilkins in Australian Systematic Botany from specimens collected near the road between Wongan Hills and Goomalling in 1996.

[2][4] This species of guichenotia grows in shrubland and woodland in scattered, disjunct populations from near Tammin to north of Kalbarri in the Avon Wheatbelt, Geraldton Sandplains and Jarrah Forest bioregions of south-western Western Australia.

[2][5] Guichenotia impudica is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[5] meaning that it is poorly known and known from only a few locations but is not under imminent threat.