''Chaetanthus'' is a group of plants in the

Restionaceae The Restionaceae, also called restiads and restios, are a family of flowering plants native to the Southern Hemisphere; they vary from a few centimeters to 3 meters in height. Following the APG IV (2016): the family now includes the former famil ...

described as a genus in 1810.Tropicos, ''Chaetanthus'' R. Br.
/ref>Brown, Robert. 1810. Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum 251
/ref> The entire genus is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the southern part of

Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...

.Kew World Checklist of Selected Plant Families
/ref> ; Species * '' Chaetanthus aristatus'' (R.Br.) B.G.Briggs & L.A.S.Johnson * '' Chaetanthus leptocarpoides'' R.Br. * '' Chaetanthus tenellus'' (Nees) B.G.Briggs & L.A.S.Johnson

References

Restionaceae Poales genera Endemic flora of Australia Taxa named by Robert Brown (botanist, born 1773) {{Poales-stub