What is "chaetanthus"

Chaetanthus is a group of plants in the Restionaceae described as a genus in 1810. The entire genus is endemic to the southern part of the State of Western Australia.

1. Chaetanthus aristatus (R.Br.) B.G.Briggs & L.A.S.Johnson
2. Chaetanthus leptocarpoides R.Br.
3. Chaetanthus tenellus (Nees) B.G.Briggs & L.A.S.Johnson