Caustis flexuosa is a sedge

Cyperaceae

Cyperaceae are a family of monocotyledonous graminoid flowering plants known as sedges, which superficially resemble grasses or rushes. The family is large, with some 5,500 species described in about 109 genera. These species are widely distributed, with the centers of diversity for the group...

 found in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. A graceful plant with attractive curling foliage. It grows to 120 cm high. Common names include Curly Wig and Grandfather's Beard.

Flowering occurs in spring and summer. Flowers being thin and cream, about 5 mm long. Followed by a pale coloured nut, 3.5 to 5 mm long and 1.8 to 2.5 mm in diameter.

It grows on the poorer soils in eastern Australia, based on granite

Granite

Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...

 or sandstone

Sandstone

Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

. In New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

 it occurs on the coast and tablelands and is commonly seen around Sydney

Sydney

Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

 and the Blue Mountains. The species is also seen as far west as Warrumbungle National Park

Warrumbungle National Park

Warrumbungle National Park is located in central northern New South Wales, Australia, 550 km northwest of Sydney. Outside of the Sydney metropolitan area parks, it is the most-visited national park in New South Wales....

 and near Mudgee. In Victoria

Victoria (Australia)

Victoria is the second most populous state in Australia. Geographically the smallest mainland state, Victoria is bordered by New South Wales, South Australia, and Tasmania on Boundary Islet to the north, west and south respectively....

 it occurs across the southern half of the state from Croajingolong National Park

Croajingolong National Park

Croajingolong is a coastal national park in Victoria, Australia, 427 kilometres east of Melbourne.The name is thought to derive from the aboriginal word Krowathunkooloong, the name of the tribe inhabiting that area of Victoria.-Description:...

 in the east to Dergholm State Park

Dergholm State Park

The Dergholm State Park is located in the far west of Victoria, Australia. It is 390 km west of Melbourne and 450 km east of Adelaide, South Australia.Dergholm State ParkLocationVictoria, AustraliaNearest CityCasterton ApsleyArea...

in the west.