| Roadside flatsedge | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Cyperus |
| Species: | C. zollingeri |
| Binomial name | |
| Cyperus zollingeri | |
Cyperus zollingeri, commonly known as roadside flatsedge, [1] is a sedge of the family Cyperaceae that is native to tropical areas of Australia, [2] Africa and Asia. [3]
The annual herb or grass-like sedge typically grows to a height of 0.1 to 0.4 metres (0.33 to 1.31 ft) and has a tufted habit. It blooms between in spring between April and May producing green flowers. [2] The root system consists of thin dense fibrous roots. The stems are trigonous to triquetrous up to a length of 40 centimetres (15.75 in). The plant has short leaves that have a width of 1 to 2.5 millimetres (0.04 to 0.10 in) with a well developed ligule. The stems at the base of the plant have papery sheaths that are scabrid towards the top. When it flowers it produces a simple, loose inflorescence with a peduncle that has a spike of spikelets with one to three rays. Later it will form a brown to black trigonous nut that is 1.3 to 1.5 mm (0.051 to 0.059 in) in length. [3]
The species was first formally described as Cyperus lucidulus by Johann Heinrich Friedrich Link in the 1820 work by Link, Sprengel, and Schrader Jahrbucher der Gewachskunde. In 1854 the botanist Ernst Gottlieb von Steudel classified it by the current name in the work Synopsis Plantarum Glumacearum. The only other synonym is Cyperus ramosii as described by Georg Kükenthal in 1925 as part of the work Cyperaceae novae. VII. Repertorium Specierum Novarum Regni Vegetabilis. [4]
The species is native to many tropical areas. In Australia it is native to Western Australia where it is found along streams and creeks in the Kimberley region growing in sandy-clay alluvium. [2] It is also found across the top end of the Northern Territory and both Cape York Peninsula and north east Queensland. [3] The species is also native in parts of Africa including the Democratic Republic of the Congo, Côte d'Ivoire, Kenya; Madagascar; Mali, Senegal and Tanzania. It is also native to parts of Asia including India, Indonesia, the Philippines, Taiwan and China. [1]
Cyperus papyrus, papyrus, papyrus sedge, paper reed, Indian matting plant or Nile grass, is a species of aquatic flowering plant belonging to the sedge family Cyperaceae. It is a tender herbaceous perennial, native to Africa, and forms tall stands of reed-like swamp vegetation in shallow water.
Cyperus is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions.
Cyperus polystachyos, also known as Pycreus polystachyos and commonly known as bunchy sedge, many-spiked sedge, or Texas sedge, is a herbaceous species in the family Cyperaceae, widespread in tropical and subtropical areas around the world, sometimes extending its range into temperate regions. In the United States, it has been reported from a region from Texas to Maine.
Cyperus alterniflorus, commonly known as umbrella flat-sedge, is a sedge of the family Cyperaceae that is native to Australia.
Cyperus betchei is a sedge of the family Cyperaceae that is native to 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 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 Australia.
Cyperus flaccidus is a sedge of the family Cyperaceae that is native to Australia.
Cyperus gilesii, commonly known as Giles' flat-sedge, is a sedge of the Cyperaceae that is native to Australia.
Cyperus gymnocaulos, commonly known as spiny flatsedge, is a sedge of the family Cyperaceae that is native to Australia.
Cyperus javanicus, also known as the Javanese flatsedge, is a sedge of the family Cyperaceae that is native to Indonesia and Australia.
Cyperus pulchellus is a sedge of the family Cyperaceae that is native to northern Australia.
Cyperus rigidellus is a sedge of the family Cyperaceae that is native to Australia.
Cyperus surinamensis, also known as the tropical flatsedge, is a sedge of the family Cyperaceae that is native to the Americas.
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 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.
Eleocharis ochrostachys, commonly known as spike rush, is a sedge of the family Cyperaceae that is native to Australia and Asia.
