1. Family: Potamogetonaceae Bercht. & J.Presl
    1. Genus: Potamogeton L.
      1. Potamogeton trichoides Cham. & Schltdl.

        This species is accepted, and its native range is Europe to Central Asia, Canary Islands to N. Africa, Uganda to S. Africa.

    [FTEA]

    Potamogetonaceae, J.J. Symoens. Flora of Tropical East Africa. 2006

    Habit
    Submerged aquatic herb.
    Rhizomes
    Rhizomes absent or only present at the end of the growing season, filiform, terete, sometimes developing terminal or axillary tubers.
    Stem
    Stems annual to perennial, up to 1.5 m long, sparingly to much branched, filiform, terete to slightly compressed, fragile and breaking easily at the nodes. Stem anatomy:stele of the circular type; endodermis of the O-type; interlacunar bundles absent; subepidermal bundles present; pseudohypodermis absent.
    Buds
    Turions apical or axillary, not greatly differing from the ordinary buds, but formed of more crowded leaves, darker and more rigid, detaching from the stem of the parent plant and easily dispersed by water (in the tropics ?).
    Leaves
    Submerged leavesbright green to dark green, often with a brownish tinge, sessile, linear, 14– 80(– 130) mm long, 0.3– 1(– 1.8) mm wide, 30– 110times as long as wide, narrowly cuneate at base, acuminate at apex, entire, 3-veined; midrib prominent, occupying 30– 70 per cent of the leaf width at the base, not bordered by rows of lacunae or lacunae poorly developed and confined to the basal half of the leaf; lateral veins sometimes inconspicuous, without additional sclerenchymatous strands; secondary and marginal veins absent; floating leaves absent; stipules axillary, open and tightly inrolled, 5– 27 mm long, translucent, often with a greenish tinge, obtuse at apex, persistent.
    Inflorescences
    Peduncles 10– 75 mm long, (2– )3– 9 times as long as the fruiting spike, as thick as the stem; spikes shortly cylindrical, 3– 9 mm long when in fruit, with 3– 5 flowers, contiguous to shortly distant near the base.
    Flowers
    Flowers 1(– 2)-carpellate.
    Fruits
    Fruitlets 2.5– 3.2 mm long; dorsal keel mostly distinct, often muriculate; beak 0.3– 0.5 mm long, straight.
    Habitat
    Dams, ponds and seasonal pools; water depth 30– 50 cm; sometimes associated with Potamogeton pusillus; 1200– 2450 m
    Distribution
    K4 T7 U2 U4

    Images

    Distribution

    Native to:

    Algeria, Altay, Austria, Baltic States, Belarus, Belgium, Botswana, Bulgaria, Canary Is., Cape Provinces, Central European Rus, Corse, Czechoslovakia, Denmark, Egypt, France, Free State, Germany, Great Britain, Greece, Hungary, Iran, Italy, Kazakhstan, Kenya, Krasnoyarsk, Kriti, KwaZulu-Natal, Lebanon-Syria, Morocco, Myanmar, Netherlands, North Caucasus, Northern Provinces, Northwest European R, Palestine, Poland, Portugal, Romania, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tanzania, Transcaucasus, Turkey, Turkey-in-Europe, Uganda, Ukraine, Uzbekistan, West Siberia, Yugoslavia, Zaïre, Zimbabwe

    Potamogeton trichoides Cham. & Schltdl. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2002 de Wilde, W.J.J.O. [10870], Ethiopia K000099840 isotype
    Jan 1, 2002 Lloyd, J. [s.n.], France K000203587
    Jan 1, 2002 Semonville, de [s.n.], France K000099850 lectotype

    First published in Linnaea 2: 175 (1827)

    Accepted by

    • Dimopoulos, P., Raus, T., Bergmeier, E., Constantinidis, T., Iatrou, G., Kokkini, S., Strid, A., & Tzanoudakis, D. (2013). Vascular plants of Greece. An annotated checklist: 1-372. Botanic gardens and botanical museum Berlin-Dahlem, Berlin and Hellenic botanical society, Athens.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Castroviejo, S. & al. (eds.) (2010). Flora Iberica 17: 1-298. Real Jardín Botánico, CSIC, Madrid.
    • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
    • Dinarvand, M. (2009). Two new records of the genus Potamogeton (Potamogetonaceae) from the aquatic flora of Iran Iranian Journal of Botany 15: 164-166.
    • Taran, G.S., Silantieva, M.M. & Shibanova, A.A. (2007). Floristic records in floodplains of the Ob riber and its tributaries (Altai territory) Botanicheskii Zhurnal. Moscow & Leningrad 92: 1763-1768.
    • Symoens, J.J. (2006). Potamogetonaceae Flora of Tropical East Africa: 1-16.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
    • Danin, A. (2004). Distribution Atlas of Plants in the Flora Palaestina area: 1-517. The Israel Academy of Sciences and Humanities, Jerusalem.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Krasnoborov, I.M. (ed.) (2000). Flora of Siberia 1: 1-189. Scientific Publishers, Inc., Enfield, Plymouth.
    • Hansen, A. & Sunding, P. (1985). Flora of Macaronesia. Checklist of vascular plants. 3. revised edition Sommerfeltia 1: 5-103.
    • Davis, P.H. (ed.) (1984). Flora of Turkey and the East Aegean Islands 8: 1-632. Edinburgh University Press, Edinburgh.
    • Pavlov, N.V. (ed.) (1956). Flora Kazakhstana 1: 1-354. Alma-Ata, Izd-vo Akademii nauk Kazakhskoi SSR.
    • Maire, R. (1952). Flore de l'Afrique du Nord 1: 1-366. Paul Lechevalier, Paris.
    • Merkodovich, N.A. (ed.) (1941). Flora Uzbekistana 1: 1-566. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.

    Literature

    Kew Backbone Distributions
    • Castroviejo, S. & al. (eds.) (2010). Flora Iberica 17: 1-298. Real Jardín Botánico, CSIC, Madrid.
    • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
    • Dinarvand, M. (2009). Two new records of the genus Potamogeton (Potamogetonaceae) from the aquatic flora of Iran Iranian Journal of Botany 15: 164-166.
    • Taran, G.S., Silantieva, M.M. & Shibanova, A.A. (2007). Floristic records in floodplains of the Ob riber and its tributaries (Altai territory) Botanicheskii Zhurnal. Moscow & Leningrad 92: 1763-1768.
    • Symoens, J.J. (2006). Potamogetonaceae Flora of Tropical East Africa: 1-16.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Danin, A. (2004). Distribution Atlas of Plants in the Flora Palaestina area: 1-517. The Israel Academy of Sciences and Humanities, Jerusalem.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Krasnoborov, I.M. (ed.) (2000). Flora of Siberia 1: 1-189. Scientific Publishers, Inc., Enfield, Plymouth.
    • Boulos, L. (1995). Flora of Egypt Checklist: i-xii, 1-287. Al Hadara Publishing, Cairo.
    • Hansen, A. & Sunding, P. (1985). Flora of Macaronesia. Checklist of vascular plants. 3. revised edition Sommerfeltia 1: 5-103.
    • Davis, P.H. (ed.) (1984). Flora of Turkey and the East Aegean Islands 8: 1-632. Edinburgh University Press, Edinburgh.
    • Pavlov, N.V. (ed.) (1956). Flora Kazakhstana 1: 1-354. Alma-Ata, Izd-vo Akademii nauk Kazakhskoi SSR.
    • Maire, R. (1952). Flore de l'Afrique du Nord 1: 1-366. Paul Lechevalier, Paris.
    • Merkodovich, N.A. (ed.) (1941). Flora Uzbekistana 1: 1-566. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.
    Flora of Tropical East Africa
    • Cook, Aquat. Wetl. Pl. S. Afr.: 238, fig. 256 c– f (2004).
    • Wiegleb & Kaplan in Folia Geobot. 33: 297 (1998).
    • Agnew, A.D.Q. & Agnew, S., Upland Kenya Wild Flowers, ed. 2: 302, t. 134 (1994).
    • Dandy in Journal of the Linnean Society of London, Botany 50: 520, distr. map fig. 3 (1937).
    • Chamisso & Schltd. in Linnaea, 2 (2): 175, t. 4, fig. 6 (1827).

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    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 2019. 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 2019. 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