1. Family: Cyperaceae Juss.
    1. Genus: Eleocharis R.Br.
      1. Eleocharis dulcis (Burm.f.) Trin. ex Hensch.

        This species is accepted, and is native to Asia-Tropical, Africa, Pacific, Australasia and Asia-Temperate.

    [FTEA]

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

    Habit
    Robust perennial 30–120 cm tall, with tufted culms from a contracted base.
    Culms
    Culms bright green, rounded (rarely quadrangular), hollow, 4–8 mm thick, septate at 3–10 cm intervals, contracted to 2–3 mm immediately below the inflorescence.
    Roots
    Roots orange, turning red-brown.
    Stolons
    Stolons white when young, to 30 cm long and to 6 mm across, with 5–8 mm long sheaths at the nodes.
    Leaf sheaths
    Sheaths to 1/2 or 1/3 of the culm height, ending in a triangular lobe
    Inflorescences
    Inflorescence a pale green cylindric spikelet 25–50 mm long, 2–6 mm across, narrower than the culm, sometimes aborting and leaving a scar; lowest glumes shorter than upper, most closely overlapping, green to pale brown with pale margin, 4–6 mm long, with wide transparent margin and rounded apex.
    Perianth
    Perianth of ± 7 long slender bristles with recurved spine-like teeth all over
    Stamens
    Stamens white, 3.
    Anthers
    Anthers elongate
    Style
    Style white, with 2–3 branches
    Fruits
    Nutlet 2–2 mm long excluding the long brown triangular appendage, smooth
    Figures
    Fig 7, p38
    Ecology
    Swamps, shallow parts of lakes, often in standing water; may be locally common or form pure stands; 0–2150 m
    Note
    The only Eleocharis in our area with transverse septa. This is a widespread species, cultivated in Asia: “Chinese water chestnut”.
    Distribution
    Range: Togo, Congo-Kinshasa, Zambia, Mozambique, Zimbabwe, Botswana, South Africa; Madagascar, Asia to Queensland and Polynesia Flora districts: U3 U4 K4 K7 T4 T6 T7 T8
    Type
    Type: “India”, no further indication

    Images

    Distribution

    Found In:

    Andaman Is., Angola, Bangladesh, Botswana, Burkina, Cambodia, Caroline Is., Chad, China South-Central, China Southeast, Congo, Fiji, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Hainan, India, Ivory Coast, Japan, Jawa, Kenya, Korea, Lesser Sunda Is., Liberia, Madagascar, Malaya, Mali, Maluku, Marianas, Mauritius, Mozambique, Myanmar, Namibia, Nansei-shoto, New Caledonia, New Guinea, New South Wales, Nigeria, Northern Territory, Pakistan, Philippines, Queensland, Samoa, Senegal, Seychelles, Sierra Leone, Sri Lanka, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Togo, Tonga, Uganda, Vietnam, Wallis-Futuna Is., Western Australia, Zambia, Zaïre, Zimbabwe

    Eleocharis dulcis (Burm.f.) Trin. ex Hensch. appears in other Kew resources:

    Date Identified Reference Herbarium Specimen Type Status
    Dec 3, 1985 Geesink, R. [7136], Thailand K000595200
    Bidgood, S. [5170], Tanzania K000190398
    Kerr, A.F.G. [7063], Thailand K000595197
    Collins, D.J. [1893], Thailand K000595198
    Hansen, B. [12375], Thailand K000595199
    Niyondham, C. [1699], Thailand K000595201
    Kerr, A.F.G. [2621], Thailand K000595206
    Kerr, A.F.G. [11289], Thailand K000595207
    Kerr, A.F.G. [11289], Thailand K000595208

    First published in Vita Rumphii: 186 (1833)

    Accepted by

    • Chang, C.S., Kim, H. & Chang, K.S. (2014) Provisional checklist of vascular plants for the Korea peninsula flora (KPF) . DESIGNPOST
    • Mostaph, M.K. & Uddin, S.B. (2013) Dictionary of plant names of Bangladesh , Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh
    • (2012) Flore du Gabon 44: 1-230. Muséum National D'Histoire Naturelle, Paris
    • (2010) Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis
    • (2010) Flora of Tropical East Africa
    • (2010) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307
    • (2008) Journal of Economic and Taxonomic Botany 32: 403-500
    • (2008) Strelitzia 22: 1-279. National Botanical Institute, Pretoria
    • Govaerts, R. & Simpson, D.A. (2007) World Checklist of Cyperaceae. Sedges . The Board of Trustees of the Royal Botanic Gardens, Kew
    • (2006) Garcia de Orta, Série de Botânica 17: 97-141
    • (2006) Scripta Botanica Belgica 35: 1-438
    • Sita, P. & Moutsambote, J.-M. (2005) Catalogue des plantes vasculaires du Congo , ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville
    • Govaerts, R. (2004) World Checklist of Monocotyledons Database in ACCESS . The Board of Trustees of the Royal Botanic Gardens, Kew
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986) Catalogue des plantes vasculaires du Mali . Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984) Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn
    • Walker, E.H. (1976) Flora of Okinawa and the southern Ryukyu islands . Smithsonian Institution Press, Washington D.C., U.S.A.

    Literature

    Flora of Tropical East Africa
    • Sedges & Rushes E. Afr.: 66, fig. 89 (1983).
    • Rhodora 41: 11 (1939)
    • Vita Rumph.: 186 (1833)
    Kew Names and Taxonomic Backbone
    • Chang, C.S., Kim, H. & Chang, K.S. (2014) Provisional checklist of vascular plants for the Korea peninsula flora (KPF) . DESIGNPOST
    • Mostaph, M.K. & Uddin, S.B. (2013) Dictionary of plant names of Bangladesh , Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh
    • (2010) Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis
    • (2010) Flora of Tropical East Africa
    • (2010) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307
    • (2008) Journal of Economic and Taxonomic Botany 32: 403-500
    • (2008) Strelitzia 22: 1-279. National Botanical Institute, Pretoria
    • (2006) Scripta Botanica Belgica 35: 1-438
    • Sita, P. & Moutsambote, J.-M. (2005) Catalogue des plantes vasculaires du Congo , ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville
    • Dy Phon, P. (2000) Dictionnaire des plantes utilisées au Cambodge . Chez l'auteur, Phnom Penh, Cambodia
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986) Catalogue des plantes vasculaires du Mali . Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux
    • (1985) Bulletin du Muséum National d'Histoire Naturelle. Section B, Adansonia 7: 259-329
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984) Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn
    • Walker, E.H. (1976) Flora of Okinawa and the southern Ryukyu islands . Smithsonian Institution Press, Washington D.C., U.S.A.

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
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    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2017. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
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    [C] © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Plants and People Africa
    Roger and Alison Heath, Plants and People Africa
    [D] © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/