| Knob sedge | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Carex |
| Species: | C. inversa |
| Binomial name | |
| Carex inversa R.Br., 1810 | |
Carex inversa, commonly known as knob sedge, is a species of sedge of the family Cyperaceae that is native to parts of Australia [1] and New Zealand and has also been introduced into Great Britain. [2]
The monoecious and rhizomatous perennial grass-like sedge has a tufted habit and typically grows to a height of 0.3 to 0.75 metres (1 to 2 ft). It blooms between September and October producing brown flowers. [1] The plant has a reasonably long rhizome with shoots that are loosely tufted. The smooth and erect culms have a circular cross-section and are usually 10 to 50 cm (3.9 to 19.7 in) in length. The length of the leaves is usually less than that of the culms and have a blade with a width of 0.7 to 2 mm (0.028 to 0.079 in) and are surrounded by dark brown coloured sheaths. [3]
The species was described by Robert Brown in 1810 as a part of the work Prodromus Florae Novae Hollandiae et Insulae Van Diemen [2] from specimens collected from his time in Australia between 1801 and 1806. There are ten synonyms for this species including; Carex inversa var. leichardtii, Carex inversa var. major, Carex inversa var. minor, Carex rhytidocarpa and Vignea inversa. [2]
It is native to parts of Australia, and is often found in winter wet depressions and along creek and rivers throughout a large area through the Wheatbelt, Peel, South West and Great Southern regions of Western Australia where it grows in sandy-clay-loam soils. [1] It is also found in south eastern parts of South Australia and southern and eastern parts of Australia extending north into coastal areas of New South Wales and Queensland. [4] The grass also occurs on Norfolk Island. [5] The plant is also commonly found in New Zealand and is regarded as non endemic. [6]
Carex capillacea, common name yellowleaf sedge in Tasmania, is a species of sedge found in Assam, the far east of Russia, New Guinea, south east Australia, New Zealand, Malesia, China, Japan and India.
Machaerina juncea, commonly known as bare twig-rush or tussock swamp twig rush, is a sedge in the sedge family, Cyperaceae, that is native to Australia, New Zealand, and New Caledonia.
Carex fascicularis, commonly known as tassel sedge, is a species of sedge of the family Cyperaceae that is native to Australia, New Zealand and New Guinea.
Carex pumila, commonly known as strand sedge or spreading sedge, is a species of sedge of the family Cyperaceae.
Carex tereticaulis, also known as basket sedge, is a species of sedge of the family Cyperaceae that is native to southern parts of Western Australia, southern parts of South Australia, southern and eastern parts of New South Wales as well as north western and central Victoria and Tasmania. The Koori peoples know the plant as Poong'ort.
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 vaginatus, commonly known as stiff-leaf sedge or stiff flat-sedge, is a sedge of the family Cyperaceae that is native to Australia.
Eleocharis acuta, commonly known as common spikerush or small spikerush, is a sedge of the family Cyperaceae that is native to Australia.
Carex brevior, known as shortbeak sedge and plains oval sedge, is a species of sedge native to North America. The specific epithet brevior means "shorter" in Latin.
Aristida calycina, commonly known as dark wiregrass, is a species of grass in the family Poaceae that is native in Australia.
Carex alliiformis is a tussock-forming perennial sedge in the family Cyperaceae. It is native to eastern parts of Asia.
Carex scaposa, also known as hua ting tai cao in Chinese, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to eastern parts of Asia.
Carex lessoniana, also commonly known as rautahi or cutty grass, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to parts of New Zealand.
Carex thunbergii is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to parts of eastern Asia from around Manchuria in the west to Japan in the east. It is found in Primorye to the north to Korea in the south.
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.
Carex hendersonii, also known as Henderson's sedge or carex de Henderson, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to western parts of North America.
Carex interrupta is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to south eastern parts of Canada and north eastern parts of the United States.
Carex michauxiana, also known as Michaux's sedge, carex de Michaux or yellowish sedge in Canada, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to eastern parts of North America and parts of Asia.
Carex alsophila, commonly known as forest sedge, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to Victoria in south eastern Australia.
Carex cephalotes, also known as wire-head sedge, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to south eastern Australia and New Zealand.