Cyperus haspan

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Cyperus haspan
Cyperus Haspans.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Cyperus
Species:
C. haspan
Binomial name
Cyperus haspan
L.

Cyperus haspan is a dwarf papyrus sedge in the Cyperaceae. It is widely distributed in tropical and subtropical regions in Africa, Madagascar, southern Asia (Iran, India, China, Philippines, Indonesia, etc.), New Guinea, Australia, South America, West Indies, Central America, southern Mexico and the southeastern United States (from Texas to Virginia). [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12]

C. haspan is found most commonly in areas with full sunlight, as it has low tolerance for shaded areas. [13] Common habitat types for this species includes low fields, tidal marshes, broadleaf marshes, and wet prairies. [13] [14] It has been found to have a tolerance for low-intensity fires. [13]

Description

The rhizomatous perennial grass-like sedge typically grows to a height of 0.2 to 0.6 metres (0.7 to 2.0 ft) and has a tufted habit. It blooms between Summer and Spring producing brown flowers. [15]

In Western Australia it is found in wet areas in the Kimberley region where it grows in gravelly sandy-clay alluvium. [15]

There are two recognised subspecies:

References

  1. ↑ Gupta, A.K.; Lansdown, R.V. (2018). "Cyperus haspan". IUCN Red List of Threatened Species . 2018: e.T168969A1258665. doi: 10.2305/IUCN.UK.2018-2.RLTS.T168969A1258665.en . Retrieved 24 March 2022.
  2. ↑ Kew World Checklist of Selected Plant Families
  3. ↑ Flora of China, Vol. 23 Page 227, 畦畔莎草 qi pan suo cao, Cyperus haspan Linnaeus, Sp. Pl. 1: 45. 1753.
  4. ↑ Edwards, S., Demissew, S., & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: i-xxviii, 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  5. ↑ Cabezas, F., Aedo, C. & Velayos, M. (2004). Checklist of the Cyperaceae of Equatorial Guinea (Annobón, Bioko, Río Muni). Belgian Journal of Botany 137: 3-26.
  6. ↑ Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  7. ↑ Acevedo-Rodríguez, P. & Strong, M.T. (2005). Monocotyledons and Gymnosperms of Puerto Rico and the Virgin Islands. Contributions from the United States National Herbarium 52: 1-415.
  8. ↑ Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  9. ↑ Catarino, L., Martins, E.S., Diniz, M.A. & Pinto-Basto, M.F. (2006). Check-list da flora vascular do parque natural das Lagos de Cufada (Guiné-Bissau). Garcia de Orta, Série de Botânica 17: 97-141.
  10. ↑ Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe. Bothalia 41: 41-82.
  11. ↑ Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies. Smithsonian Contributions to Botany 98: 1-1192.
  12. ↑ Flora of North America, Vol. 23 Page 151, Cyperus haspan Linnaeus, Sp. Pl. 1: 45. 1753.
  13. 1 2 3 "USDA Plants Database". plants.usda.gov. Retrieved 2025-07-29.
  14. ↑ Wetzel, Paul R.; Valk, Arnold G.; Toth, Louis A. (June 2001). "Restoration of wetland vegetation on the Kissimmee River Floodplain: Potential role of seed banks" . Wetlands. 21 (2): 189–198. doi:10.1672/0277-5212(2001)021[0189:ROWVOT]2.0.CO;2. ISSN   0277-5212.
  15. 1 2 "Cyperus haspan". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  16. ↑ "Cyperus haspanjuncoides". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
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