Biology:Cyperus nutans
| Cyperus nutans | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Cyperus |
| Species: | C. nutans
|
| Binomial name | |
| Cyperus nutans | |
| Synonyms[1] | |
|
Cyperus bispicatus Steud. | |
Cyperus nutans is a sedge of the family Cyperaceae that is native to Australia,[2] China, India, Bangladesh, south-east Asia, Malaysia, India, and Indonesia.[1]
The rhizomatous perennial sedge typically grows to a height of 1.5 metres (4.9 ft).[2] The culms are three sided with sharp edges and concave sides. The culms are typically up 100 cm (39 in) in length and have a diameter of 10 mm (0.39 in). The leaves are usually shorter than the culms and have a width of around 6 to 12 mm (0.24 to 0.47 in).[3] It blooms between February and July and produces brown flowers.[2] Each compound inflorescence has six to ten primary branches up to a length of 30 cm (12 in). The narrow-cylindrical spikes have a length of 2 to 3 cm (0.79 to 1.18 in) with a 5 mm (0.20 in) diameter. After flowering a dark brown narrow-ellipsoid to narrow-obovoid shaped nut will form.[3]
The species was first formally described by the botanist Martin Vahl in 1805 as part of the work Enumeratio Plantarum, from a specimen collected in India .[4][5] The only two subspecies are Cyperus nutans subsp. nutans and Cyperus nutans var. nutans.[6]
The plant is found in northern and eastern Australia in coastal areas in the states of New South Wales, Queensland, Northern Territory and Western Australia.[6] In Western Australia it is found around shady swamps and pools in the Kimberley region where it grows in sandy-clay soils.[2] In New South Wales it is only found in the north-eastern corner where it is found along creek banks.[3]
See also
References
- ↑ 1.0 1.1 "Cyperus elatus L. | Plants of the World Online | Kew Science" (in en). http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:330928-2.
- ↑ 2.0 2.1 2.2 2.3 "Cyperus nutans". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/16246.
- ↑ 3.0 3.1 3.2 "Cyperus nutans Vahl.". PlantNet. Royal Botanic Gardens, Sydney. http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Cyperus~nutans. Retrieved 2 December 2018.
- ↑ "Cyperus nutans". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. https://biodiversity.org.au/nsl/services/rest/name/apni/98282.
- ↑ Vahl, M.(H.) (1805). "Triandria. Monogynia". Enumeratio Plantarum 2: 363. https://bibdigital.rjb.csic.es/viewer/9746/?offset=#page=379&viewer=picture&o=bookmark&n=0&q=.
- ↑ 6.0 6.1 "Cyperus nutans Vahl". Atlas of Living Australia. Global Biodiversity Information Facility. https://bie.ala.org.au/species/http://id.biodiversity.org.au/node/apni/2904610#names. Retrieved 2 December 2018.
External links
- Cyperus nutans occurrence data from GBIF
- Cyperus nutans occurrence data from the Australasian Virtual Herbarium
Wikidata ☰ Q10929004 entry
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