The edges of the leaves have 3 lobes and sometimes a heart-shaped base and are rolled under, the lower surface densely covered with star-shaped hairs.

[2] Commersonia corniculata was first formally described as Lasiopetalum corniculatum in 1822 by the English botanist James Edward Smith, from material gathered at King George Sound by Archibald Menzies.

[3][4] In 2018, Kelly Anne Shepherd and Carolyn Wilkins examined the material and determined that it matched the later described species, Commersonia cygnorum (described by Ernst Gottlieb von Steudel in 1845).

[7] This species grows in woodland, heath and between granite boulders in near coastal areas south of Perth, from Busselton to Walpole-Nornalup National Park and near Esperance in the Avon Wheatbelt, Esperance Plains, Jarrah Forest, Swan Coastal Plain and Warren bioregions of south-western Western Australia.

[2][8] Commersonia corniculata is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.