Caustis is a genus of rhizomatous sedges. The species, all endemic to Australia, are as follows: Caustis blakei Kuk. Caustis deserti R.L.Barrett Caustis dioica R.Br. Caustis flexuosa R.Br. - Curly Wig Caustis gigas R.L.Barrett Caustis pentandra R.Br. -Thick Twist Rush Caustis recurvata Spreng. Caustis restiacea Benth. References Cyperaceae genera Taxa named by Robert Brown (botanist, born 1773)