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This species is accepted, and its native range is Tropical & Subtropical Old World.
Cyperus difformis L.

[CPLC]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Naturalizada en Colombia.
Morphology General Habit
Hierba
Conservation
No Evaluada

[FSOM]

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

Morphology General Habit
Slender to medium-sized annual; stems 6–80 cm long and 0.7–3 mm thick, triangular, glabrous
Morphology Leaves
Largest leaf-blades 5–25 cm long and 2–6 mm wide, flat, smooth or scabrid on margin and midrib; sheaths green to reddish brown, rather wide, the basal without leaf-blades
Morphology Reproductive morphology Inflorescences
Inflorescence a solitary congested anthela or with many subumbellately arranged heads giving an anthela 1–8 cm wide, and with 2–3 leafy bracts; largest involucral bract 3–25 cm long and 1–6 mm wide, erect or spreading, much overtopping the inflorescence; each head 5–12 mm in diam. and with 10–60 spikelets in digitate clusters
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 2–6 x 0.8–1.2 mm, pale yellowish grey to dark brown, 6–30-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 0.6–0.8 mm long, obovate, yellowish to dark reddish brown with a wide green midrib ending in a short mucro
Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-branched
Morphology Reproductive morphology Fruits
Nutlet 0.6–0.8 x 0.3–0.4 mm, triangular, obovate-elliptic, yellowish brown, minutely papillose.
Distribution
S3 pantropical, also in southern Europe.
Ecology
Altitude below 50 m.

[FTEA]

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

Type
Type: India, Herb. Linn. No. 70.10 (LINN, lecto.), chosen by Tucker in Syst. Bot. Monogr. 43: 50 (1994)
Morphology General Habit
Perennial or annual up to 67 cm tall.
Morphology Culms
Culms 13–61 cm long, 1.4–3.2 mm wide, trigonous, smooth
Morphology Leaves
Leaf sheath green to reddish-brown, 2–10.5 cm long. Leaf blade linear, flat, 9–38 cm long, 2.4–8.3 mm wide, glabrous to scabrid on primary veins and margins, apex acuminate Leaves up to 46 cm long. Basal leaves without blades
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, 2–4, 8–35 cm long, 3–6.4 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence simple to compound, sometimes almost capitate, primary branches 0–14, 0–7 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in dense digitate clusters, sessile or at the end of primary and secondary branches, 10–many per cluster, ovoid, 2.2–8.7 mm long, 0.8–1.4 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes pale yellowish-brown to dark reddish-brown, obovate to rounded, 0.5–1 mm long, 0.3–0.8 mm wide, keel green, winged, apex shortly mucronate, seemingly rounded Glumes spreading and showing nutlet when matures, axis straight, elongating when fruit matures, red with white scars where the glumes were attached.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 0.3–0.6 mm long
Morphology Reproductive morphology Fruits
Nutlet pale yellowish-brown, ellipsoid-obovoid, 0.5–0.8 mm long, 0.3–0.5 mm wide, slightly exceeding the glume, smooth to minutely papillose.
Ecology
In swamps, alongside water edges, in temporary pools, seasonally wet grasslands, and roadside ditches; sea-level up to 1700 m
Conservation
Least Concern (LC) due to its wide distribution and common habitat.
Note
Close to C. submicrolepis but much coarser with broader leaves and culm.
Distribution
Range: Widespread in Africa; SE Asia, Pacific Flora districts: U1 U2 U3 U4 K3 K4 K5 K7 T1 T2 T3 T4 T5 T6 T7 T8 ZP

Native to:

Afghanistan, Albania, Andaman Is., Angola, Azores, Bangladesh, Benin, Botswana, Bulgaria, Burkina, Burundi, Cameroon, Cape Provinces, Caprivi Strip, Central African Repu, Chad, China North-Central, China South-Central, China Southeast, Comoros, Congo, Cook Is., Corse, East Himalaya, Equatorial Guinea, Ethiopia, France, Free State, Gabon, Gambia, Ghana, Greece, Guinea, Guinea-Bissau, Gulf of Guinea Is., Hainan, India, Inner Mongolia, Iran, Iraq, Italy, Ivory Coast, Japan, Jawa, Kazakhstan, Kazan-retto, Kenya, Kirgizstan, Korea, Kriti, KwaZulu-Natal, Lebanon-Syria, Lesotho, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Mali, Manchuria, Marianas, Mauritania, Mauritius, Mozambique, Myanmar, Namibia, Nansei-shoto, Nepal, New Guinea, New South Wales, Nicobar Is., Niger, Nigeria, Norfolk Is., Northern Provinces, Northern Territory, Ogasawara-shoto, Oman, Pakistan, Palestine, Philippines, Portugal, Primorye, Queensland, Romania, Rwanda, Réunion, Senegal, Seychelles, Sicilia, Sierra Leone, Socotra, Somalia, South Australia, Spain, Sri Lanka, Sudan, Sulawesi, Sumatera, Swaziland, Tadzhikistan, Taiwan, Tanzania, Thailand, Togo, Tokelau-Manihiki, Transcaucasus, Turkey, Turkey-in-Europe, Uganda, Ukraine, Uzbekistan, Victoria, Vietnam, West Himalaya, Western Australia, Xinjiang, Yemen, Yugoslavia, Zambia, Zaïre, Zimbabwe

Introduced into:

Alabama, Arizona, Bolivia, California, Canary Is., Caroline Is., Chagos Archipelago, Colombia, Costa Rica, Dominican Republic, Ecuador, Egypt, Fiji, Florida, Georgia, Guyana, Haiti, Hawaii, Idaho, Jamaica, Kentucky, Libya, Louisiana, Madeira, Mexico Northeast, Mexico Northwest, Mexico Southwest, Mississippi, Morocco, Nebraska, New Jersey, New Mexico, New York, North Carolina, Oklahoma, Oregon, Panamá, Pennsylvania, Peru, Puerto Rico, Sardegna, South Carolina, St.Helena, Tennessee, Texas, Venezuela, Virginia, Washington, Windward Is.

English
Small-flower umbrella plant

Cyperus difformis L. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Sep 24, 1993 Chantaranothai, P. [90/680a], Thailand K000467529
Oct 1, 1982 Hage, J.L. [1127], Bahia K000188795
Oct 1, 1982 Santos, T.S. [3627], Bahia K000188793
Oct 1, 1982 Hage, J.L. [1190], Bahia K000188794
Dec 1, 1979 Mori, S.A. [11646], Bahia K000188796
Jan 1, 1978 Belém, R.P. [2564], Bahia K000188797
Jan 1, 1967 Smitinand, T. [5413], Thailand K000467521
Jan 1, 1967 Smitinand, T. [5972], Thailand K000467524
Aug 1, 1892 Wright, C. [1950], New Mexico K000950495
Aug 1, 1892 Wright, C. [1950], New Mexico K000950496
Bidgood, S. [6278], Tanzania K000468147
Bidgood, S. [6145], Tanzania K000468280
Kerr, A.F.G. [20700], Thailand K000467518
Kerr, A.F.G. [15724], Thailand K000467519
Kerr, A.F.G. [3818], Thailand K000467520
Kerr, A.F.G. [7007], Thailand K000467525
Kerr, A.F.G. [2972], Thailand K000467527
Chantaranothai, P. [1111], Thailand K000467530
s.coll. [Cat. no. s.n.], Myanmar K001132691
Simpson, D.A [1755], Thailand K000467531
Kerr, A.F.G. [16108], Thailand K000467528
Bidgood, S. [5324], Tanzania K000190554
Howard, A.J. [6], Thailand K000467526
Bidgood, S. [5967], Tanzania K000468458
Kerr, A.F.G. [4300], Thailand K000467523
Heckman, C.W. [C-6], Thailand K000467522
Bidgood, S. [5820], Tanzania K000468605

First published in Cent. Pl. II: 6 (1756)

Accepted by

  • Acevedo-Rodríguez, P. & Strong, M.T. (2005). Monocotyledons and Gymnosperms of Puerto Rico and the Virgin Islands Contributions from the United States National Herbarium 52: 1-415.
  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
  • 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.
  • 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.
  • 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.
  • Castroviejo, S. & al. (eds.) (2008). Flora Iberica 18: 1-420. Real Jardín Botánico, CSIC, Madrid.
  • Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
  • Cossu, T.A, Camarda, I. & Brundu, G. (2014). A catalogue of non-native weeds in irrigated crops in Sardinia (Italy) Webbia; Raccolta de Scritti Botanici 69: 145-156.
  • 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.
  • Espejo Serna, A. & López-Ferrari, A.R. (1997). Las Monocotiledóneas Mexicanas una Sinopsis Florística 5: 1-98. Consejo Nacional de la Flora de México, México D.F.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe Bothalia 41: 41-82.
  • 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.
  • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
  • Kumar, S. (2012). Herbaceous flora of Jaunsar-Bawar (Uttarkhand), India: enumerations Phytotaxonomy 12: 33-56.
  • Lamont, E.E., Werier, D. & Glenn, S.D. (2014). Noteworthy plants reported from the Torrey range - 2011 and 2012 Journal of the Torrey Botanical Society 141: 95-108.
  • 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.
  • Marais, W. & Araujo, A.C. (2018). Flore des Mascareignes 202: 1-99. IRD Éditions, MSIRI, RBG-Kew, 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.
  • 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.
  • Rothrock, P.E. (2009). Sedges of Indiana and adjacent states: the non-Carex species: 1-271. Indiana Academy of Sciences.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Sykes, W.R. (2016). Flora of the Cook Islands: 1-973. National Tropical Botanical Garden, Hawaii.
  • Takhtajan, A.L. (ed.) (2006). Konspekt Flora Kavkaza 2: 1-466. Editio Universitatis Petropolitanae.
  • Tanaka, N., Koyama, T. & Murata, J. (2005). The flowering plants of Mt. Popa, central Myanmar - Results of Myanmar-Japanese joint expeditions, 2000-2004 Makinoa 5: 1-102.
  • Tohmé, G. & Tohmé, H. (2014). Illustrated Flora of Lebanon, ed. 2: 1-610. CNRS Publication.
  • 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.
  • Verloove, F. (2017). New xenophytes from the Canary islands (Gran Canaria and Tenerife; Spain) Acta Botanica Croatica 76: 120-131.
  • Walker, E.H. (1976). Flora of Okinawa and the southern Ryukyu islands: 1-1159. Smithsonian Institution Press, Washington D.C., U.S.A.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Literature

Catálogo de Plantas y Líquenes de Colombia

  • ColPlantA (2021). "ColPlantA. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.colplanta.org/"

Kew Backbone Distributions

  • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
  • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
  • 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.
  • 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.
  • Cossu, T.A, Camarda, I. & Brundu, G. (2014). A catalogue of non-native weeds in irrigated crops in Sardinia (Italy) Webbia; Raccolta de Scritti Botanici 69: 145-156.
  • 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.
  • Espejo Serna, A. & López-Ferrari, A.R. (1997). Las Monocotiledóneas Mexicanas una Sinopsis Florística 5: 1-98. Consejo Nacional de la Flora de México, México D.F.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe Bothalia 41: 41-82.
  • Hammel, B.E. & al. (2003). Manual de Plantas de Costa Rica 2: 1-694. Missouri Botanical Garden Press, St. Louis.
  • Kitalong, A.H., DeMeo, R.A. & Holm, T. (2008). Native Trees Palau. A field guide: 1-236.
  • Kumar, S. (2012). Herbaceous flora of Jaunsar-Bawar (Uttarkhand), India: enumerations Phytotaxonomy 12: 33-56.
  • Lamont, E.E., Werier, D. & Glenn, S.D. (2014). Noteworthy plants reported from the Torrey range - 2011 and 2012 Journal of the Torrey Botanical Society 141: 95-108.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • 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.
  • Sheppard, C.R.C. & Seaward, M.R.D. (eds.) (1999). Ecology of the Chagos archipelago: 1-350. Westbury Academic & Scientific Publishing, Otley.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Sykes, W.R. (2016). Flora of the Cook Islands: 1-973. National Tropical Botanical Garden, Hawaii.
  • Tohmé, G. & Tohmé, H. (2014). Illustrated Flora of Lebanon, ed. 2: 1-610. CNRS Publication.
  • Verloove, F. (2017). New xenophytes from the Canary islands (Gran Canaria and Tenerife; Spain) Acta Botanica Croatica 76: 120-131.
  • Walker, E.H. (1976). Flora of Okinawa and the southern Ryukyu islands: 1-1159. Smithsonian Institution Press, Washington D.C., U.S.A.
  • 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

  • Cent. Pl. 2: 6 (1756)
  • F.T.A. 8: 330 (1902)
  • Fl. Eth. 6: 436 (1997).
  • Fl. Somalia 4: 117 (1995)
  • Haines & Lye, Sedges & Rushes E. Afr.: 165, figs. 310, 311 (1983)

Art and Illustrations in Digifolia
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Catálogo de Plantas y Líquenes de Colombia
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Flora of Somalia
Flora of Somalia
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Flora of Tropical East Africa
Flora of Tropical East Africa
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Herbarium Catalogue Specimens
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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/
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