See text Lysiosepalum is a genus of 5 species of flowering plants in the genus of plants in the family Malvaceae, all endemic to the south-west of Western Australia.

The leaves are mostly linear to egg-shaped with 2 leaf-like stipules at the base of the petiole.

There are petal-like sepals alternating between broad to narrow, and tiny, scale-like petals.

[2][3][4] The genus Lysiosepalum was first formally described in 1858 by Ferdinand von Mueller in his Fragmenta Phytographiae Australiae, and the first species he described (the type species) was Lysiosepalum barryanum.

[2][7] The following is a list of names of Lysiosepalum species accepted by the Australian Plant Census as at April 2022:[8] Species of Lysiosepalum occur in open woodland or shrubland between Yuna and Ravensthorpe in the south-west of Western Australia.