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This species is accepted, and its native range is Tropics & Subtropics.
Cyperus laevigatus L.

[FTEA]

Cyperaceae, K Hoenselaar, B. Verdcourt & H. Beentje. Hypolytrum, D Simpson. Fuirena, M Muasya. Flora of Tropical East Africa. 2010

Type
Type: South Africa, Cape of Good Hope, König s.n. Lectotype: Herb. Linn. No. 70.13 (LINN), chosen by Tucker & McVaugh in McVaugh (ed.), Fl. Novo-Galiciana 13: 308 (1993)
Morphology General Habit
Perennial, up to 96 cm tall, with a long creeping rhizome, to 30 cm or more long, 1–5 mm in diameter, pale brown to purple-black.
Morphology Culms
Culms tufted, crowded, or spaced along the rhizome, 3–95 cm long, 0.5–4.4 mm wide, rounded to trigonous, sometimes triquetrous, glabrous, the base covered with short scales
Morphology Leaves
Leaves up to 16 cm long. Leaf sheath pale to dark purple brown, 1.5–14 cm long, rather loose. Leaf blade sometimes absent but when present linear, inrolled, almost culm-like, 2.2–6.5 cm long, 0.5–2 mm wide, scabrid on margin but appears glabrous as margins are inrolled, apex acute
Morphology Reproductive morphology Inflorescences Bracts
Involucral bract one. Leaf-like, upright and continuing in the direction of the culm, making the inflorescence appear lateral, 1.1–3.8 cm long, 1–1.5 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence capitate.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 1 to 24 per head, loosely crowded, linear to lanceolate, 5–25 mm long, 1.5–4.1 mm wide, rachis straight to curved.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes pale yellowish with reddish brown dots, sometimes dark red to almost black on the wings, broadly elliptic, 2.5–4.1 mm long, 1.8–2.1 mm wide, very closely overlapping, apex acute, shortly mucronate or frayed
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 2.7–3.2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1.2–1.9 mm long
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 long linear branches
Morphology Reproductive morphology Fruits
Nutlet grey to brown, often shiny, obovoid to ellipsoid, flat on one side, rounded on the other, 1.4–2.1 mm long, 0.8–1.2 mm wide, shortly apiculate, smooth but with distinct rather large isodiametric surface-cells
Figures
Fig.25.
Ecology
On (salt-)lake shores, streambanks, in (temporary) pools and flood areas, and near hot springs, often forming dense mats; sea-level to 2300 m
Conservation
Least Concern due to its wide distribution
Note
Confused with Pycreus but the flat side of the nutlet is pressed against the rachilla, while in Pycreus one of the edges is pressed into the rachilla.
Distribution
Flora districts: U2 U3 K1 K2 K3 K4 K5 K6 K7 T1 T2 T3 T4 T5 T6 T7 Range: Widespread in Africa

[CPLC]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Nativa en Colombia; Alt. 100 m.; Pacífico.
Morphology General Habit
Hierba
Conservation
No Evaluada

[FWTA]

Cyperaceae, Miss S. S. Hooper. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
A creeping, rush-like sedge, varying much in size
Morphology Reproductive morphology Inflorescences
Constantly with an erect bract and a capitate, pseudo-lateral inflorescence of sessile, white spikelets
Ecology
Damp sandy places, particularly on the margins of brackish pools.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Tufted perennial with crowded stems or stems solitary on a long creeping rhizome
Vegetative Multiplication Rhizomes
Rhizome 1–5 mm thick, light brown to purplish black
Morphology Stem
Stems usually 3–60(–150) cm long and 0.5–2(–6) mm thick, rounded to triangular or angular, glabrous, the basal part covered with short scales and rather loose leaf-sheaths and the stem therefore wider across the sheaths
Morphology Leaves
Leaves to 4 cm long and 0.5–2 mm wide, usually inrolled and almost stem-like, scabrid on margin, blade sometimes absent; sheaths light to dark purple brown, all or the lowest only without leaf-blades
Morphology Reproductive morphology Inflorescences
Inflorescence a solitary spikelet or more commonly a lax to crowded head of 2–30 spikelets (rarely to 80 spikelets), 0.5–3.5 cm in diam.; major involucral bract 1–3 cm long, scabrid on margin, slightly flattened but stem-like and continuing in the direction of the stem, the inflorescence therefore apparently lateral
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 5–20 x 1.5–3 mm, straight or curved, linear to lanceolate, somewhat flattened, pale yellowish grey, rarely variegated dark brown, 15–30-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 2–3.5 mm long, very closely overlapping, broadly elliptic, rounded on the back that is without keel except near the tip, pale yellowish with reddish brown dots; apex acute, shortly mucronate or frayed
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 long branches
Morphology Reproductive morphology Fruits
Nutlet 1.5–1.7 x 0.8–1 mm, obovate with short apiculus, flat on 1 side, rounded on the other, grey to brown; surface smooth but with distinct rather large isodiametric surface-cells.
Distribution
N1, 2; C2 pantropical.
Ecology
Sea-level to 1200 m. alt.

Native to:

Afghanistan, Algeria, Angola, Argentina Northeast, Argentina Northwest, Arizona, Baleares, Bolivia, Botswana, Burundi, California, Canary Is., Cape Provinces, Cape Verde, Caprivi Strip, Chad, Chile Central, Colombia, Costa Rica, Cuba, Cyprus, Djibouti, Dominican Republic, East Aegean Is., Ecuador, Egypt, Eritrea, Ethiopia, France, Free State, Galápagos, Gilbert Is., Greece, Guatemala, Gulf States, Hawaii, India, Iran, Iraq, Italy, Jamaica, Kenya, Kriti, KwaZulu-Natal, Lebanon-Syria, Leeward Is., Lesotho, Libya, Madagascar, Madeira, Malawi, Mali, Mauritania, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Morocco, Mozambique, Namibia, New South Wales, Nicaragua, Niger, Nigeria, North Carolina, Northern Provinces, Oman, Pakistan, Palestine, Peru, Puerto Rico, Queensland, Rodrigues, Rwanda, Réunion, Sardegna, Saudi Arabia, Senegal, Sicilia, Sinai, Socotra, Somalia, South Australia, Spain, St.Helena, Sudan, Swaziland, Tadzhikistan, Tanzania, Texas, Tunisia, Turkey, Turkmenistan, Uganda, Uzbekistan, Venezuela, Venezuelan Antilles, Vietnam, Western Australia, Western Sahara, Windward Is., Yemen, Zambia, Zaïre, Zimbabwe

Extinct in:

Portugal

Introduced into:

Chile North

Cyperus laevigatus L. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 1, 1887 Baron, R. [5236], Madagascar K000362703
Balfour, I.B. [s.n.], Rodrigues K000362659
Bidgood, S. [6142], Tanzania K000468283
Omer-Cooper, J., Ethiopia Juncellus laevigatus 23619.000

First published in Mant. Pl. 2: 179 (1771)

Accepted by

  • 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.
  • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
  • Audru, J., Cesar, J. & Lebrun, J.-P. (1993). Les Plantes Vasculaires de la République de Djibouti. Flore Illustrée 2(2): 433-968. CIRAD, Départerment d'Elevage et de Médecine vétérinaire, Djibouti.
  • Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Bernal, R., Gradstein, R.S. & Celis, M. (eds.) (2016). Catálogo de plantas y líquenes de Colombia 1-2: 1-3068. Libro impreso.
  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Dobignard, A. & Chatelain, C. (2013). Index synonymique de la flore d'Afrique du nord 5: 1-451. Éditions des conservatoire et jardin botaniques, Genève.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • 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.
  • Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
  • Lambdon, P. (2012). Flowering plants & ferns of St Helena: 1-624. Pisces publications for St Helena nature conservation group.

Literature

Catálogo de Plantas y Líquenes de Colombia

  • ColPlantA (2021). "ColPlantA. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.colplanta.org/"

Flora of West Tropical Africa

  • Kük. in Engl., Pflanzenr. Cyper. 321 (1936).
  • Mant. Pl. 2: 179 (1771)

Kew Backbone Distributions

  • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
  • Audru, J., Cesar, J. & Lebrun, J.-P. (1993). Les Plantes Vasculaires de la République de Djibouti. Flore Illustrée 2(2): 433-968. CIRAD, Départerment d'Elevage et de Médecine vétérinaire, Djibouti.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Bernal, R., Gradstein, R.S. & Celis, M. (eds.) (2016). Catálogo de plantas y líquenes de Colombia 1-2: 1-3068. Libro impreso.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
  • Lambdon, P. (2012). Flowering plants & ferns of St Helena: 1-624. Pisces publications for St Helena nature conservation group.
  • Marais, W. & Araujo, A.C. (2018). Flore des Mascareignes 202: 1-99. IRD Éditions, MSIRI, RBG-Kew, Paris.

Flora of Somalia

  • Flora Somalia, Vol 4, (1995) Author: by K. A. Lye [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 321 (1936)
  • Fl. Eth. 6: 459 (1997).
  • Fl. Somalia 4: 132 (1995)
  • Haines & Lye, Sedges & Rushes E. Afr.: 264, fig. 539 (1983)
  • Mant. Pl. 2: 179 (1771)

Catálogo de Plantas y Líquenes de Colombia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of West Tropical Africa
Flora of West Tropical Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Plants and People Africa
Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
© Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/