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This species is accepted, and its native range is Tropical Africa, Asia to N. Australia.
A specimen from Kew's Herbarium

[FTEA]

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

Type
Type: India E, König s.n. (C, holo.)
Morphology General Habit
Perennial, fairly robust, up to 72 cm tall, with a thick, sometimes nodular, creeping rhizome and many crowded roots.
Morphology Culms
Culms few, 36–60 cm long, 2–3.8 mm wide, trigonous, glabrous
Morphology Leaves
Leaf blade linear, flat, w-shaped, 19–45 cm long, 2.9–8 mm wide, scabrid on margin and primary vein, at least near apex, apex acuminate Leaves up to 60 cm long. Leaf sheath greenish, yellow or reddishbrown, 4–21 cm long, rather wide.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, 3–6, lowermost 22–34 cm long, 4.3–8 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence a simple to compound anthela, primary branches 4–7, 2–9 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in crowded spikes, sessile and at the end of primary branches, many per spike, ovoid, 5.1–8.3 mm long, 2–3.3 mm wide, rachilla straight.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish brown, margins pale, concave, 1.9–2.8 mm long, 1.3–1.6 mm wide, keel strongly excurrent, with prominent lateral veins on either side, apex mucronate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.7–2.9 mm long
Morphology Reproductive morphology Fruits
Nutlet dark brown, obovoid-oblong, trigonous, 1.4–1.7 mm long, 0.6–0.8 mm wide, minutely papillose.

Native to:

Afghanistan, Angola, Assam, Bangladesh, Cambodia, China South-Central, China Southeast, East Himalaya, Eritrea, Ethiopia, Hainan, India, Jawa, Kenya, Laccadive Is., Laos, Lesser Sunda Is., Mozambique, Myanmar, Nansei-shoto, Nepal, New Guinea, Niger, Northern Territory, Oman, Pakistan, Palestine, Philippines, Queensland, Sri Lanka, Sudan, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Uganda, Vietnam, West Himalaya, Western Australia, Yemen

Introduced into:

Mauritius

Cyperus nutans Vahl appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1967 Howard, A.J. [10], Thailand K000467262
Marcan, A. [1855], Thailand K000467260
Hoed, G.den [211], Thailand K000467261
Kerr, A.F.G. [2640], Thailand K000467263
Kerr, A.F.G. [8009], Thailand K000467265
Karsen, L. [2105], Thailand K000467266
Phusomsaeng, S. [453], Thailand K000467267
Kerr, A.F.G. [1180], Thailand K000467258
Phengklai, C. [5202], Thailand K000467268
Balansa, B. [2835], Vietnam K000467259
s.coll. [Cat. no. s.n.], West Bengal K001132690
Kerr, A.F.G. [1923], Thailand K000467257
Larsen, K. [2270], Thailand K000467264

First published in Enum. Pl. Obs. 2: 363 (1805)

Accepted by

  • 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.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Literature

Kew Backbone Distributions

  • Ananda Rao, T. & Ellis, J.L. (1995). Flora of Lakshadweep islands off the Malabar coast, peninsular India, with emphasis on phytogeographical distribution of plants Journal of Economic and Taxonomic Botany 19: 235-250.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
  • Marais, W. & Araujo, A.C. (2018). Flore des Mascareignes 202: 1-99. IRD Éditions, MSIRI, RBG-Kew, Paris.
  • Mosti, S., Raffaelli, M. & Tardelli, M. (2012). Contributions to the flora of central-southern Dhofar (Sultanate of Oman) Webbia; Raccolta de Scritti Botanici 67: 65-91.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Flora of Tropical East Africa

  • Enum. Pl. 2: 363 (1806).

Flora of Tropical East Africa
Flora of Tropical East 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