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This species is accepted, and its native range is Tropical & S. Africa to N. Australia.
Cyperus tenuiculmis Boeck.

[FTEA]

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

Type
Type: Sri Lanka [Zeylon], König s.n. (LD, syn., BM isosyn.*); Rumphius, Herb. Amb. 6: 17, t. 7, fig. 1 (1750) (syn.) (* R. Brown states there was a König specimen in the Banks Herbarium.) Types: Sierra Leone, Afzelius s.n.; Nigeria, Nupe, Barter s.n.; E India, Khasia Hills, Hooker? s.n.; Indonesia, Batavia, Junghuhn s.n.; Sri Lanka, Thwaites s.n.; Philippines, Luzon, Haenke s.n., Meyen s.n. (B, syn.)
Morphology General Habit
Very densely tufted perennial, 10–30(–40) cm tall. Perennial, medium-sized to robust, up to 150 cm tall, with a rather thick creeping rhizome and swollen stem-bases.
Morphology Stem
Stems many, flattened, glabrous
Morphology Leaves
Leaves up to 2/3 the height of the stems, ± 1.2 mm wide Leaf blade sometimes rather stiff, linear, flat, 12–55 cm long, 2.5–11 mm wide, with multiple major veins, scabrid on margins and major veins, apex acute to acuminate Leaves up to 65 cm long. Leaf sheath green to brown, 2.5–10 cm long.
Morphology Reproductive morphology Inflorescences
Inflorescence 7–18 cm tall with a single straw-coloured or pale greenish brown ovoid to lanceolate spikelet 5–12 mm long, 2–4 mm wide. Inflorescence simple (sometimes compound), primary branches 3–10, 2.5–25 cm long.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes with brown tinge near tip, lanceolate, 2–2.5 mm long, obtuse with single mid-vein Glumes pale brown to dark reddish brown, ovate, 2.7–4.1 mm long, 1.6–2.2 mm wide, keel green, sometimes excurrent, apex rounded, acute to acuminate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamen 1 Stamens 3.
Morphology Reproductive morphology Flowers Gynoecium Style
Style 2-branched
Morphology Reproductive morphology Fruits
Nutlet dark brown, obovoid-biconvex, 0.8–1.1 mm long, 0.5–0.7 mm wide, appearing smooth but with fine reticulate pattern of cells apart from scattered distinct tubercles, scarcely stipitate. Nutlet dark reddish-brown to almost black, obovoid-ellipsoid, trigonous, 1.6–2 mm long,0.8–1.1 mm wide, minutely papillose.
Ecology
Seasonally inundated mangrove swamp ( Avicennia), seaward edges of saltmarshes, stone quarry, also inland lake edges; sea level–15 m
Note
Kern gives the authority as (Retz.) R. Br. and Hooper has annotated all our material as R. Br. Vahl misspelt the epithet ‘polythrichirides’ but this error does not invalidate his combination. Napper and Haines and Lye say lake region and coast but no material from the lakes has been seen.
Morphology Culms
Culms 34–116 cm long, 0.8–5 mm wide, trigonous to triquetrous, smooth to scabrid, sometimes only scabrid just below the inflorescence
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, erect to spreading, 2–5, lowermost 6.5–28 cm long, 2–6.4 mm wide
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in loose clusters, at the end of primary (sometimes secondary) branches, 2–11 per cluster, linear-lanceolate, 15–46 mm long, 1.6–2.2 mm wide, rachilla strongly zig-zag when glumes are shed.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.9–4.1 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.6–1.4 mm long
Distribution
Flora districts: K7 T3 T6 T8 Z Range: Madagascar, tropical Asia, Australia

Native to:

Angola, Assam, Bangladesh, Benin, Bismarck Archipelago, Borneo, Botswana, Burkina, Burundi, Cambodia, Cameroon, Caroline Is., Central African Repu, Chad, China South-Central, China Southeast, Congo, East Himalaya, Equatorial Guinea, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Hainan, India, Ivory Coast, Jawa, Kenya, Laos, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Mali, Maluku, Mozambique, Myanmar, Nepal, New Guinea, Nigeria, Northern Territory, Philippines, Queensland, Rwanda, Senegal, Sierra Leone, Socotra, Sri Lanka, Sudan, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Togo, Uganda, Vietnam, Zambia, Zaïre, Zimbabwe

Cyperus tenuiculmis Boeckeler appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1971 Jaeger, P. [27], Mali K000391877
Jan 1, 1967 Smitinand, T. [5961], Thailand K000430990
Sep 1, 1962 Robinson, E.A. [3243], Zambia K000362650 isotype
Sep 1, 1953 Wallich [3321], India K000592514
Sep 1, 1953 Wallich [3367], India K000592517
Griffith, W. [6209], Peninsular Malaysia K000290876 Unknown type material
Parnell, J. [1685], Thailand K000430997
Chantaranothai, P. [1636], Thailand K000430995
Chantaranothai, P. [90/125], Thailand K000430993
Smitinand. T. [12402], Thailand K000430992
Smitinand, T. [6073], Thailand K000430989
Kerr, A.F.G. [3357], Thailand K000430986
illegible [211], Thailand K000430985
Kerr, A.F.G. [21419], Thailand K000430984
Put [4131], Thailand K000430983
Kerr, A.F.G. [11262], Thailand K000430982
Kerr, A.F.G. [1900], Thailand K000430987
Chantaranothai, P. [90/73], Thailand K000430996
Tagawa, M. [T9265], Thailand K000430991
Kerr, A.F.G. [1900], Thailand K000430988
Thailand K000430981
Parker, C. [2011], Burkina Faso K000391878

First published in Linnaea 36: 286 (1870)

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.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Cabezas, F., Aedo, C. & Velayos, M. (2004). Checklist of the Cyperaceae of Equatorial Guinea (Annobón, Bioko, Río Muni) Belgian Journal of Botany 137: 3-26.
  • Catarino, L., Sampaio Martins, E., Pinto-Basto, M.F. & Diniz, M.A. (2006). Plantas Vasculares e Briófitos da Guiné-Bissau: 1-298. Instituto de investigação científica tropical, Instituto Português de apoio ao desenvolvimento.
  • 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.
  • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307.
  • Lye, K.A. & Thery, P. (2012). Flore du Gabon 44: 1-230. Muséum National D'Histoire Naturelle, Paris.
  • Middleton, D.J. & al. (eds.) (2019). Flora of Singapore 7: 1-525. Singapore Botanic Gardens.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Sarder, N.U. & Hassan, M.A. (eds.) (2018). Vascular flora of Chittagong and the Chittagong Hill Tracts 1: 1-897. Bangladesh National Herbarium, Dhaka.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Velayos, M., Aedo, C., Cabezas, F., de la Estrella, M., Barberá, P. & Fero, M. (eds.) (2014). Flora de Guinea Ecuatorial 11: 1-416. Consejo superior de investigaciones científicas, Real jardín botánico, Madrid.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Literature

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.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Cabezas, F., Aedo, C. & Velayos, M. (2004). Checklist of the Cyperaceae of Equatorial Guinea (Annobón, Bioko, Río Muni) Belgian Journal of Botany 137: 3-26.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Jones, M. (1991). A checklist of Gambian plants: 1-33. Michael Jones, The Gambia College.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • 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 Tropical East Africa

  • Enum. Pl. 2: 248 (1805)
  • F.D.-O.A. 1: 403 (1937)
  • F.T.A. 8: 413 (1902)
  • Fl. Br. India 6: 632 (1893)
  • Fl. Mal. 7: 586 (1974)
  • Haines & Lye, Sedges & Rushes E. Afr.: 196, figs. 388, 389 (1983).
  • Haines & Lye, Sedges & Rushes E. Afr.: 89, figs 148, 149 (1983).
  • Journ. E. Afr. Nat. Hist. Soc. 25 (110): 11 (1965)
  • K.B. 1932: 69 (1932)
  • Linnaea 36: 286 (1870)
  • P.O.A. C: 124 (1895)
  • R. Br., Prodr.: 226 (1810)

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

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/