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This species is accepted, and its native range is Africa, SW. Syria to Tropical Asia, N. Australia.
Cyperus alopecuroides Rottb.

[FTEA]

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

Type
Type: Arabia, Forskåhl s.n. (C, holo.)
Morphology General Habit
Perennial, fairly robust, up to 170 cm tall.
Morphology Culms
Culms few, 22–140 cm long, 3.5–8.4 mm wide, trigonous, glabrous
Morphology Leaves
Leaves basally crowded, up to 100 cm long. Leaf sheath reddish-brown to blackish, 7–31 cm long. Leaf blade linear, flat to w-shaped, 37–75 cm long, 4–15 mm wide, strongly scabrid on margin, apex acuminate
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, 5–8, lowermost 44–73 cm long, 5–16 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence a compound anthela, primary branches 6–10, 3–20 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in crowded clusters, sessile and at the end of primary and secondary, sometimes tertiary branches, many per cluster, ovoid, 2.5–6.7 mm long, 1.8–2.7 mm wide, rachilla straight.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes golden to reddish-brown, ovate, the margins inrolled, 1.2–1.7 mm long, 0.8–1.2 mm wide, keel green, rounded, apex excurrent
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.4–2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.6–0.8 mm long
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 stigma branches
Morphology Reproductive morphology Fruits
Nutlet brown, flattened, pressed against the rachilla with the flat side, 0.7–1 mm long, 0.5–0.75 mm wide, smooth or minutely reticulate.
Ecology
In swamps, seasonally wet grasslands, old cultivations; sea-level up to 1800 m
Conservation
Least Concern (LC) due to its wide distribution and common habitat
Distribution
Flora districts: K1 K3 K4 K7 T1 T2 T3 T4 T5 T6 T7 Range: Widespread in tropical Africa; Egypt, Madagascar, Arabia, S Asia

[FSOM]

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

Morphology General Habit
Fairly robust tussocky perennial with 50–150 cm long triangular stems
Morphology Leaves
Basal leaves crowded, 5–15 mm wide, strongly scabrid on margin; sheath reddish brown to blackish
Morphology Reproductive morphology Inflorescences
Spikes 1–4 x 0.4–1.2 cm, consisting of numerous crowded spikelets Inflorescence an umbel-like anthela 10–30 cm long and wide, consisting of 1 sessile and few–many stalked clusters of spikes; largest peduncles with tertiary clusters of spikes
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 2.5–8 x 1.5–2.5 mm, lanceolate, pale to golden (or more rarely reddish) brown, 10–15-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 1–1.7 mm long, ovate, rounded on the back, excurrent in a short mucro; margin in the lower half inrolled to enclose the nutlet
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 long stigmas
Morphology Reproductive morphology Fruits
Nutlet 0.7–0.9 x 0.5–0.6 mm, usually flattened, smooth or minutely reticulate.
Distribution
S2, 3 widespread in the tropics of the Old World, probably introduced into America.
Ecology
Sea-level to 500 m.

[FWTA]

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

Diagnostic
Somewhat less robust than C. dives Del. and with the edges of the flattened achenes exposed in the ripe spikelet
Ecology
In or near open water.

Native to:

Andaman Is., Angola, Bangladesh, Benin, Botswana, Burkina, Canary Is., Cape Verde, Chad, Comoros, East Aegean Is., Egypt, Eritrea, Ethiopia, Ghana, India, Ivory Coast, Jawa, Kenya, KwaZulu-Natal, Lebanon-Syria, Lesser Sunda Is., Madagascar, Malawi, Mali, Mauritania, Mozambique, Niger, Nigeria, Northern Provinces, Northern Territory, Pakistan, Palestine, Queensland, Saudi Arabia, Senegal, Seychelles, Somalia, Sri Lanka, Sudan, Swaziland, Tanzania, Togo, Vietnam, Western Australia, Yemen, Zambia, Zimbabwe

Introduced into:

Florida, Leeward Is., Windward Is.

Cyperus alopecuroides Rottb. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Dec 1, 1891 Hooker, J.D. [100], Cape Verde K001134086
Peter, A. [8372], Tanzania K000321411 syntype

First published in Descr. Icon. Rar. Pl.: 38 (1773)

Accepted by

  • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • 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, 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.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.

Literature

Flora of West Tropical Africa

  • Cherm. in Arch. Bot. Caen 7, Mém. 4: 17 (1936).
  • Descr. Pl. Rar. Programm. 20 (1772)
  • Descr. et Icon. 38, t. 8 fig. 2 (1773)
  • Kük. in Engl., Pflanzenr. Cyper. 71 (1936)

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.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • 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.
  • Hassler, M. (2012). Flora of Rhodes. Systematic list of flora of Rhodes http://www.rz.uni-karlsruhe.de/~db111/flora/rhodos/list.php.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.

Flora of Somalia

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

Flora of Tropical East Africa

  • Descr. Icon. Rar. Pl.: 38 (1773)
  • E.P. 4, 20 (101): 71 (1936)
  • Fl. Eth. 6: 445 (1997).
  • Fl. Somalia 4: 120 (1995)
  • Haines & Lye, Sedges & Rushes E. Afr.: 181, fig. 348 (1983)

Art and Illustrations in Digifolia
Digital Image © Board of Trustees, RBG Kew

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
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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

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew 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/