It is shrub with its young branches covered with woolly, star-shaped hairs, and has narrowly egg-shaped leaves and blue, purple of pink flowers usually in groups of 4 to 6.

Lysiosepalum rugosum grows is a shrub that typically grows to a height of 0.3–1 m (1 ft 0 in – 3 ft 3 in) and has its young branches with woolly, star-shaped hairs.

[2][3][4] Lysiosepalum rugosum was first formlly described in 1863 by George Bentham in his Flora Australiensis from specimens collected near the Swan River Colony by James Drummond.

[5] The specific epithet (rugosum) means "wrinkled", referring to the surface of the leaves.

[6] Wrinkled-leaf lysiosepalum grows in a range of soils, but usually on lateritic gravels in open woodland and shrubland, and is widely distributed from north-east of Geraldton to Manmanning in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains and Jarrah Forest IBRA bioregions of south-west Western Australia.