| Cyperus cuspidatus | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Cyperus |
| Species: | C. cuspidatus |
| Binomial name | |
| Cyperus cuspidatus | |
Cyperus cuspidatus, commonly known as the coastal plain flatsedge, [2] is a sedge of the family Cyperaceae that is native to seasonally dry tropical areas of Africa, Asia, the Americas and Australia. [3] [4]
The annual sedge typically grows to a height of 2.5 to 15 centimetres (0.98 to 5.91 in) and has a tufted habit. In Australia it blooms between February and August producing green-yellow-brown flowers. [4] The plant has a slender root system. The glabrous culms are tufted and have a triangular corss-section with length of 1 to 17 cm (0.39 to 6.69 in) and a width of 0.2 to 0.5 mm (0.0079 to 0.0197 in). It has linear shaped leaf blades that can be flat or rolled that taper to a pointed end. The leaves are 1 to 13.5 cm (0.39 to 5.31 in) in length and have a width of 0.2 to 1.1 cm (0.079 to 0.433 in). the leaves are accompanied by red-brown to purple coloured sheaths of a similar length and width. [5]
The species was described by the botanist Carl Sigismund Kunth in 1816 as a part of the work Nova genera et species plantarum authored by Kunth, Aimé Bonpland and Alexander von Humboldt. It has a total of 18 synonyms including; Cyperus angustifolius, Cyperus gratus, Cyperus recurvus, Cyperus waterlotii and Dichostylis cuspidata. [3] The type specimen was collected by von Humboldt and Bonpland in Venezuela in 1800. [6]
In Australia it is found in Queensland, the Northern Territory and it is found along creeks, streams and rivers in the Kimberley region of Western Australia where it grows in stony red sand-loam soils over sandstone. [4] In Asia it is found from Pakistan in the west to China in the east and extends down into Malesia. It is found in southern parts of North America extending through Central America and in northern parts of South America. [3]
Carex inversa, commonly known as knob sedge, is a species of sedge of the family Cyperaceae that is native to parts of Australia and New Zealand and has also been introduced into Great Britain.
Cyperus alopecuroides, commonly known as the foxtail flatsedge, is a sedge of the family Cyperaceae that is native to parts of Africa, Asia and Australia.
Cyperus compressus, commonly known as annual sedge, is a sedge of the family Cyperaceae that has a wide distribution throughout countries with warmer climates. It is found in tropical areas of Africa, Asia and the Americas.
Cyperus concinnus is a sedge of the family Cyperaceae that is native to Australia, and found in New South Wales, Queensland, the Northern Territory, South Australia, Victoria and Western Australia.
Cyperus congestus, commonly known as dense flat-sedge or clustered flat-sedge, is a sedge of the family Cyperaceae that is native to southern Africa mostly in South Africa, Lesotho and Namibia.
Cyperus dactylotes is a sedge of the family Cyperaceae that is native to all of mainland Australia except for Victoria.
Cyperus digitatus, also known as finger flatsedge in the United States, and chang xiao sui suo cao in China, is a sedge of the family Cyperaceae that is native to tropical and subtropical areas of Africa, Asia, the Americas and Australia.
Cyperus gilesii, commonly known as Giles' flat-sedge, is a sedge of the Cyperaceae that is native to Australia.
Cyperus hamulosus is a sedge of the family Cyperaceae. It is native from Bulgaria east to Mongolia, and from Morocco in northAfrica down to Namibia in the south. It has also been introduced to western parts of Australia.
Cyperus ixiocarpus is a sedge of the family Cyperaceae that is native to northern parts of Australia.
Cyperus javanicus, also known as the Javanese flatsedge, is a sedge of the family Cyperaceae that is native to Indonesia and Australia.
Cyperus nutans is a sedge of the family Cyperaceae that is native to Australia, China, India, Bangladesh, south-east Asia, Malaysia, India, and Indonesia.
Cyperus rigidellus is a sedge of the family Cyperaceae that is native to Australia.
Cyperus vaginatus, commonly known as stiff-leaf sedge or stiff flat-sedge, is a sedge of the family Cyperaceae that is native to Australia.
Cyperus victoriensis, also known as channel nut grass is a sedge of the family Cyperaceae that is native to all the states and territories of mainland Australia.
Cyperus viscidulus is a sedge of the family Cyperaceae that is native to north western Australia.
Cyperus vorsteri is a sedge of the family Cyperaceae native to southern Africa.
Cyperus zollingeri, commonly known as roadside flatsedge, is a sedge of the family Cyperaceae that is native to tropical areas of Australia, Africa and Asia.
Cyperus hemisphaericus is a species of sedge that is endemic to eastern parts of Africa.
Carex gaudichaudiana, also known as fen sedge, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to parts of Australia and New Zealand.
