| 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. | |
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. Stems are a shiny pale green. The specific epithet pentandra is derived from the ancient Greek language, referring to five stamens. 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.
References
- "Caustis flexuosa". PlantNET - NSW Flora Online. Retrieved 2011-09-22.
- Les Robinson - Field Guide to the Native Plants of Sydney, ISBN 978-0-7318-1211-0 page 283
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