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This species is accepted, and its native range is W. Tropical Africa to Ethiopia and Zambia.
A specimen from Kew's Herbarium

[FWTA]

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

Morphology General Habit
Weak annual up to 30 cm. high
Morphology Leaves
Soft, flat leaves and bracts
Morphology Reproductive morphology Inflorescences
Broad yellow-green spikelets with conspicuously spreading glumes ending in recurved green tips
Ecology
Marshy savanna, rice fields and other wet places.

[FTEA]

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

Type
Type: Ethiopia, Gapdia, Schimper s.n. (B, holo.)
Morphology General Habit
Annual, up to 35 cm tall.
Morphology Culms
Culms tufted, 3.5–25 cm long, 0.8–2.2 mm wide, trigonous, glabrous to scabrid
Morphology Leaves
Leaf blade linear, flat with few longitudinal ribs, 7–30 cm long, 2 mm wide, scabrid on ribs and margins, apex acuminate Leaf sheath green to pale brown, 1.5–6 cm long. Leaves up to 36 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, erect or spreading, overtopping the inflorescence, 4–7, lowermost 7–25 cm long, 2–3.8 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence simple to compound, primary branches 4–8, 2–8.5 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in laxly sub-digitate clusters, sessile and at the end of primary and secondary branches, 3–10 per cluster, 4.8–12.4 mm long, 3.2–4.9 mm wide, with spreading glumes.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes greenish-yellow to reddish-brown, the margins uncoloured, linear-elliptic, 1.9–2.5 mm long, 0.4–0.8 mm wide, keel green, 3-veined, apex strongly mucronate, recurved
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.6–2.2 mm long
Morphology Reproductive morphology Fruits
Nutlet brownish-red, linear-oblong,1.6–2.2 mm long, 0.3–0.5 mm wide, minutely papillose in longitudinal rows.
Ecology
In wet areas, seasonally flooded grasslands, swamps, pools; 1050–1200 m
Conservation
Least Concern (LC) due to its wide distribution and common habitat
Distribution
Range: Widespread in tropical west and central Africa, Ethiopia and Sudan Flora districts: U3 U4 T4

Native to:

Benin, Burkina, Central African Repu, Chad, Congo, Ethiopia, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Mali, Nigeria, Senegal, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre

Cyperus reduncus Hochst. ex Boeckeler appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Sep 1, 2010 Onana, J.-M. [2903], Cameroon K000673395
Feb 1, 1892 Schweinfurth [2433], Sudan K000321361 Unknown type material
Bidgood, S. [5972], Tanzania K000468453

First published in Linnaea 35: 580 (1868)

Accepted by

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • 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.
  • 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.
  • Jones, M. (1991). A checklist of Gambian plants: 1-33. Michael Jones, The Gambia College.
  • Larridon, I., Reynders, M., Huygh, W., Bauters, K., Vrijdaghs, A., Leroux, O., Muasya, A.M., Simpson, D.A. & Goetghebeur, P. (2011). Taxonomic changes in C3 Cyperus (Cyperaceae) supported by molecular phylogenetic data, morphology, embryology, ontogeny and anatomy Plant ecology and evolution 144: 327-356.

Literature

Flora of West Tropical Africa

  • C.B. Cl., III. Cyper. t.9 (1909)
  • F.T.A. 8: 329
  • Kük. in Engl., Pflanzenr. Cyper.: 240 (1936)
  • Meneses in Garcia de Orta 4: 560 (1956).
  • in Linnaea 35: 580 (1868)

Kew Backbone Distributions

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
  • Jones, M. (1991). A checklist of Gambian plants: 1-33. Michael Jones, The Gambia College.

Flora of Tropical East Africa

  • F.T.A. 8: 329 (1902)
  • Fl. Eth. 6: 437 (1997).
  • Haines & Lye, Sedges & Rushes E. Afr.: 160, fig. 297 (1983)
  • Linnaea 35: 580 (1868)

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