Caustis pentandra

Caustis pentandra, known as the thick twist rush is a widely distributed grass like plant found in many parts of Australia. It may grow to 2 metres tall, often seen in dry open forest, or moist heathland.^[1] Stems are a shiny pale green. The specific epithet pentandra is derived from the ancient Greek language, referring to five stamens.^[2] This species first appeared in scientific literature in the year 1810, in the Prodromus Florae Novae Hollandiae, authored by the prolific Scottish botanist Robert Brown.

Thick twist rush
Ku-ring-gai Chase National Park, Australia
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Cyperaceae
Genus:	Caustis
Species:	C. pentandra
Binomial name
Caustis pentandra R.Br.