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This species is accepted, and its native range is Tropical & S. Africa to S. Central China.

[FTEA]

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

Type
Type: India, Midnapur, Tschandrancone, König s.n. (LD, holo.)
Morphology General Habit
Perennial, up to 118 cm tall.
Morphology Culms
Culms crowded, bases swollen and fused into a horizontal rhizome, 5.5–116 cm tall, 0.8–3.7 mm wide, trigonous to rounded, smooth
Morphology Leaves
Leaves up to 118 cm long. Leaf blade linear, canaliculate or flat, 5–56 cm long, 1.4–8 mm wide, glabrous or scabrid on margin and primary vein, apex acute to acuminate Leaf sheath nearly black at the base, brown up to the culm, 1–13 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, sometimes reflexed, 2–5, lowermost 2.5–20 cm long, 1.2–6 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence capitate.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 5 to many per head, ovoidlanceolate, 7.2–17 mm long, 4–8.7 mm wide, rachis straight.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dirty white, sometimes with a pinkish or pale brown tinge, elliptic-lanceolate, ovate to boatshaped, 4.3–8.9 mm long, 2.4–3.8 mm wide, keel flat to acute, mostly with 6–8 conspicuous striations on either side of keel, apex acute to sometimes obtuse
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 4.2–7.2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1.6–3.7 mm long
Morphology Reproductive morphology Fruits
Nutlet (dark) brown to black, shiny, obovoid, trigonous, 1.6–2.5 mm long, 1.3–1.8 mm wide, almost smooth to minutely papillose
Figures
Fig. 27:4-7, p169
Note
NOTE: Cyperus niveus is quite variable and several infraspecific taxa have been described. Of the three varieties Haines and Lye recognize I only recognize two, var. leucocephalus and var. tisserantii. Var. tisserantii has previously been described as a variety of C. margaritaceus, along with C. nduru.

[FSOM]

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

Morphology General Habit
Perennial with crowded stems often growing in a straight line
Morphology Stem
Bases swollen and fused into a horizontal rhizome; roots slender; stems 10–50 cm long and 0.7–2.5 mm thick, triangular to rounded, glabrous, the base covered by hard leaf-sheaths not breaking into fibres
Morphology Leaves
Leaves 5–35 cm long and 0.5–5 mm wide, scabrid on margin and midrib at least near the tip; sheaths hard, light to dark brown
Morphology Reproductive morphology Inflorescences
Inflorescence a solitary usually globose head of 5–50 spikelets, 1–4 cm in diam.; involucral bracts leafy, the largest 1–16 cm long
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 5–17 x 3–7 mm, lanceolate, compressed, 10–30-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 4–6 mm long, elliptic-lanceolate, white with a pinkish brown tinge and 6–8 conspicuous striations on each side of the rather obscure midrib; apex obtuse
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-branched
Morphology Reproductive morphology Fruits
Nutlet 1.3–2 x 1–1.3 mm, obovate in outline, triangular, brown to black, smooth, shortly apiculate.

Native to:

Afghanistan, Aldabra, Assam, Bangladesh, Benin, Botswana, Burkina, Burundi, Cameroon, Cape Provinces, Central African Repu, China South-Central, Congo, Djibouti, East Himalaya, Eritrea, Ethiopia, Free State, Gabon, Ghana, Guinea, India, Iran, Ivory Coast, Kenya, KwaZulu-Natal, Lesotho, Madagascar, Malawi, Malaya, Mozambique, Myanmar, Namibia, Nepal, Nigeria, Northern Provinces, Oman, Pakistan, Rwanda, Saudi Arabia, Senegal, Somalia, Sudan, Swaziland, Tanzania, Thailand, Tibet, Togo, Uganda, Vietnam, West Himalaya, Yemen, Zambia, Zaïre, Zimbabwe

Cyperus niveus Retz. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Sep 27, 2004 Wieringa, J.J. [5078], Gabon K001322132
Aug 1, 1996 Parnell [95-556], Thailand K000467617
Apr 1, 1995 Wieringa, J.J. [2954], Gabon K001322133
Nov 1, 1968 Beusekom, C.F. van [513], Thailand K000467614
Jan 1, 1967 Smitinand, T. [5794], Thailand K000467607
Jan 1, 1963 King, R.M. [5437], Thailand K000467605
Bidgood, S. [6057], Tanzania K000468368
Bidgood, S. [5939], Tanzania K000468486
Put [4067], Thailand K000467608
Kerr, A.F.G. [12846], Thailand K000467609
Kerr, A.F.G. [19715], Thailand K000467610
Marcan, A. [2167], Thailand K000467611
Kerr, A.F.G. [2971], Thailand K000467613
Geesink, R. [5630], Thailand K000467615
Smitinand, T. [5792], Thailand K000467604
Kerr, A.F.G. [3636], Thailand K000467612
Bidgood, S. [5239], Tanzania K000190467
Bidgood, S. [5098], Tanzania K000190326
Smitinand, T. [36606], Thailand K000467616
Smitinand, T. [4571], Thailand K000467606
Smitinand, T. [5792], Thailand K000467603
Bidgood, S. [5157], Tanzania K000190385

First published in Observ. Bot. 5: 12 (1788)

Accepted by

  • Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
  • 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.
  • Maliya, S.D. & Datt, B. (2010). A contribution to the flora of Katarniyaghat wildlife sanctuary, Baharaich district, Uttar Pradesh Journal of Economic and Taxonomic Botany 34: 42-68.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Literature

Kew Backbone Distributions

  • 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.
  • 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.
  • 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.
  • Maliya, S.D. & Datt, B. (2010). A contribution to the flora of Katarniyaghat wildlife sanctuary, Baharaich district, Uttar Pradesh Journal of Economic and Taxonomic Botany 34: 42-68.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Flora of Somalia

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

Flora of Tropical East Africa

  • Fl. Eth. 6: 464 (1997).
  • Fl. Somalia 4: 130 (1995)
  • Haines & Lye, Sedges & Rushes E. Afr.: 256 (1983)
  • Observ. Bot. 5: 12 (1788)

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

Herbarium Catalogue Specimens

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