Cyperaceae


Cyperaceae
Cyperaceae
Cyperus polystachyos flower head
Scientific classification e
Kingdom: Plantae
clade: Angiosperms
clade: Monocots
clade: Commelinids
Order: Poales
Family: Cyperaceae
Juss.
Genera

About 109 (not all listed here)

Cyperaceae are a family of monocotyledonous graminoid flowering plants known as sedges, which superficially resemble grasses or rushes. The family is large, with some 5,500 species described in about 109 genera.[1] These species are widely distributed, with the centers of diversity for the group occurring in tropical Asia and tropical South America. While sedges may be found growing in all kinds of situations, many are associated with wetlands, or with poor soils. Ecological communities dominated by sedges are known as sedgelands.

Features distinguishing members of the sedge family from grasses or rushes are that members of the sedge family have stems with triangular cross-sections (with occasional exceptions), and their leaves are spirally arranged in three ranks (grasses have alternate leaves forming two ranks).[2][3][4]

Some well-known sedges include the water chestnut (Eleocharis dulcis) and the papyrus sedge (Cyperus papyrus), from which the Ancient Egyptian writing material was made. This family also includes cotton-grass (Eriophorum), spike-rush (Eleocharis), sawgrass (Cladium), nutsedge or nutgrass (Cyperus rotundus, a common lawn weed), the large genus of Carex, and white star sedge (Rhynchospora colorata).

Selected genera

Broad-leaved Cotton-grass (Eriophorum latifolium)

References

  1. ^ R. Govaerts & D. A. Simpson, with J. Bruhl, T. Egorova, P. Goetghebeur & K. Wilson (2007). Word Checklist of Cyperaceae: Sedges. Royal Botanic Gardens, Kew. ISBN 9781842461990. 
  2. ^ "Grasslike non-grasses". http://www.backyardnature.net/fl_caryx.htm. 
  3. ^ Peter W. Ball, A. A. Reznicek & David F. Murray. "210. Cyperaceae Jussieu". In Flora of North America Editorial Committee. Magnoliophyta: Commelinidae (in part): Cyperaceae. Flora of North America. 23. Oxford University Press. ISBN 9780195152074. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=10246. 
  4. ^ Brian R. Speer (September 29, 1995). "Glumiflorae: More on Morphology". University of California, Berkeley. http://www.ucmp.berkeley.edu/monocots/glumiflorae/glummm.html. Retrieved March 23, 2007. 

External links


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Look at other dictionaries:

  • Cyperaceae — Cypéracées …   Wikipédia en Français

  • Cyperaceae — Cyperaceae, Riedgräser, Scheingräser, auch unächte Gräser genannt, eine im äußeren Bau mit den ächten Gräsern (Gramineae) ziemlich übereinstimmende Familie und auch gleich diesen weit verbreitet und in geselligem Wachsthume ihrer zahlreichen… …   Herders Conversations-Lexikon

  • Cyperaceae —   [zu griechisch kýpeiros, eine Wasser oder Wiesenpflanze], die Riedgräser …   Universal-Lexikon

  • Cyperaceae — ▪ plant family Introduction       sedge family of monocotyledonous flowering plants, a division of the order Poales. The Cyperaceae are grasslike herbaceous plants found especially in wet regions throughout the world. Distribution and abundance… …   Universalium

  • Cyperaceae — Cypéracées …   Wikipédia en Français

  • Cyperaceae —   Ciperáceas Carex halleriana …   Wikipedia Español

  • Cyperaceae — Sauergrasgewächse Grundblütige Segge (Carex halleriana) Systematik Abteilung: Bedecktsamer (Magnoliophyta) …   Deutsch Wikipedia

  • Cyperaceae — La de las Cyperaceae o ciperáceas es una familia de hierbas monocotiledóneas generalmente perennes y graminiformes. Familia cosmopolita, integrada por aproximadamente 4000 especies, agrupadas en unos 115 géneros, que se encuentran por todo el… …   Enciclopedia Universal

  • Cyperaceae — noun bulrush; chufa; cotton grass; papyrus; umbrella plant • Syn: ↑family Cyperaceae, ↑sedge family • Hypernyms: ↑monocot family, ↑liliopsid family • Hyponyms: ↑Cyperus, ↑ …   Useful english dictionary

  • Cyperaceae — …   Википедия


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