Skip to main content
This species is accepted, and its native range is Cosmopolitan.
Najas marina

[FTEA]

Najadaceae, L. Triest (Vrije Universiteit, Brussels). Flora of Tropical East Africa. 1989

Morphology General Habit
Stems up to 150 cm. long, up to 2 mm. in diameter, mostly armed with spines.
Morphology Leaves
Leaves 3.6-65 mm. long, fleshy, acute, 1.1-5.7 mm. wide including teeth on both sides (or 0.4-2.5 mm. excluding the teeth); margin on each side serrulated with (0-)4-17(-40) conspicuous spiny teeth on broad triangular excrescences, the spine-cell resting upon several elongate brown cells; teeth up to 2 mm. long, the ratio of teeth-length to leaf-width being 0.4-2.5; abaxial side of midrib with (0-)2-8(-40) spines, similar to those on the margin and on the stem; septa and fibres always absent; sheath 1.5-5 × 1-5.5 mm. (ratio = 0.4-1.2), rounded, entire or serrulated with 1(-3) spine-cells on each side.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary, solitary.
Morphology Reproductive morphology Flowers
Male flower 2-5 (including spathe-neck) × 0.8-3 mm.; neck of the spathe 0.5-1 mm., tapering at the top, bearing brownish spine-cells at the apex; inner envelope protruding 0.2-0.7 mm. above the anther; anther 1.2-4 × 0.7-2.5 mm. Female 2-5 mm. long; ovary 1-3.5 × 0.3-1.9 mm.; style and stigma 0.3-1.6 mm.; stigma (2-)3(-4)-lobed.
sex Male
Male flower 2-5 (including spathe-neck) × 0.8-3 mm.; neck of the spathe 0.5-1 mm., tapering at the top, bearing brownish spine-cells at the apex; inner envelope protruding 0.2-0.7 mm. above the anther; anther 1.2-4 × 0.7-2.5 mm.
sex Female
Female 2-5 mm. long; ovary 1-3.5 × 0.3-1.9 mm.; style and stigma 0.3-1.6 mm.; stigma (2-)3(-4)-lobed.
Morphology Reproductive morphology Fruits
Fruit with persistent membranous pericarp and remnants of style.
Morphology Reproductive morphology Seeds
Seed ovate, slightly asymmetrical, 1.9-7.5 mm. × 0.8-3.3 mm. (ratio = 1.2-3.5); testa pitted with areoles, arranged irregularly; areoles irregular in shape and dimensions.
Distribution
Throughout the world12 subspecies and 4 varieties recognised for the Old World.

Native to:

Algeria, Altay, Amur, Argentina Northeast, Argentina Northwest, Arizona, Aruba, Assam, Austria, Bahamas, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil Southeast, Bulgaria, Burundi, Buryatiya, California, Canary Is., Cape Provinces, Central American Pac, Central European Rus, China North-Central, China South-Central, China Southeast, Chita, Corse, Cuba, Cyprus, Czechoslovakia, Denmark, Dominican Republic, East European Russia, Egypt, El Salvador, Eritrea, Finland, Florida, France, Galápagos, Germany, Great Britain, Greece, Gulf States, Haiti, Hungary, India, Indiana, Inner Mongolia, Iran, Iraq, Italy, Jamaica, Japan, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, KwaZulu-Natal, Lebanon-Syria, Leeward Is., Lesser Sunda Is., Libya, Madagascar, Malawi, Maluku, Manchuria, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mongolia, Morocco, Mozambique, Myanmar, Namibia, Netherlands, Nevada, New Mexico, New South Wales, New York, North Caucasus, North Dakota, Northern Territory, Northwest European R, Norway, Ohio, Oman, Pakistan, Palestine, Panamá, Pennsylvania, Poland, Portugal, Primorye, Puerto Rico, Queensland, Romania, Rwanda, Réunion, Saudi Arabia, Senegal, Sicilia, Sinai, Socotra, South Dakota, South European Russi, Spain, Sri Lanka, Sumatera, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Texas, Thailand, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Turks-Caicos Is., Uganda, Ukraine, Utah, Uzbekistan, Venezuela, Victoria, Vietnam, West Himalaya, West Siberia, Western Australia, Windward Is., Wisconsin, Xinjiang, Yugoslavia, Zambia, Zaïre, Zimbabwe

Introduced into:

Illinois

Najas marina L. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1984 Gollmer [s.n.], Venezuela K000587199 isotype
Mozambique 19164.000
India 40203.000
Griffith, W. [103] K000912607 holotype
Hooker, J.D. [639], West Bengal K000912593
Clarke, C.B. [31879], India K000912592
Griffith, W. [s.n.] K000912604
Griffith, W. [398] K000912605
Griffith, W. [398] K000912606

First published in Sp. Pl.: 1015 (1753)

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.
  • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
  • Adams, C.D. (1972). Flowering Plants of Jamaica: 1-848. University of the West Indies, Mona.
  • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
  • Bono, G. (1996). Flora Y Vegetacion del Estado Táchira Venezuela: 1-951. Museo Regionaledi Scienze Naturali, Torino.
  • Castroviejo, S. & al. (eds.) (2010). Flora Iberica 17: 1-298. 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.
  • Correll, D.S. & Correll, H.B. (1982). Flora of the Bahama Archipelago: 1-1692. J.Cramer, Vaduz.
  • Dassanayake (ed.) (2000). A Revised Handbook to the Flora of Ceylon 14: 1-307. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
  • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.
  • Davis, P.H. (ed.) (1984). Flora of Turkey and the East Aegean Islands 8: 1-632. Edinburgh University Press, Edinburgh.
  • 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 Serena, A. & López-Ferrari, A.R. (1996). Las Monocotiledóneas Mexicanas una Sinopsis Florística 1(6): 1-116. Consejo Nacional de la Flora de México, México D.F.
  • Flora of North America Editorial Committee (2000). Flora of North America North of Mexico 22: 1-352. Oxford University Press, New York, Oxford.
  • Ghazanfar, S.A. (1992). An Annotated Catalogue of the Vascular Plants of Oman and their Vernacular names Scripta Botanica Belgica 2: 1-153.
  • Grubov, V.I. (2001). Key to the Vascular Plants of Mongolia 1: 1-411. Science Publishers, Inc. Enfield, USA. Plymouth, U.K.
  • H?, P.-H. (1993). Câyc? Vi?tnam. An Illustrated flora of Vietnam 3(1): 1-603d. Pham-hoang Ho, Montréal.
  • Hansen, A. & Sunding, P. (1985). Flora of Macaronesia. Checklist of vascular plants. 3. revised edition Sommerfeltia 1: 5-103.
  • Hashmi, R.Y. & Omer, S. (1987). Flora of Pakistan 176: 1-6. Department of Botany, University of Karachi, Karachi.
  • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
  • Jongbloed, M., Western, R.A. & Boer, B. (2000). Annotated Check-list for plants in the U.A.E.: 1-90. Zodiac Publishing, Dubai.
  • Jørgensen, P.M. & León-Yánes, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador: 1-1181. Missouri Botanical Garden Press, St. Louis.
  • Krasnoborov, I.M. (ed.) (2000). Flora of Siberia 1: 1-189. Scientific Publishers, Inc., Enfield, Plymouth.
  • 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.
  • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.
  • Leon, H. (1946). Flora de Cuba 1: 1-441. Cultural S. A., La Habana.
  • Liogier, H.A. & Martorell, L.F. (2000). Flora of Puerto Rico and Adjacent Islands: a Systematic Synopsis ed. 2: 1-382. Editorial de la Universidad de Puerto Rico, San Juan.
  • Merkodovich, N.A. (ed.) (1941). Flora Uzbekistana 1: 1-566. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.
  • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
  • Moscoso, R.H. (1943). Catalogus Florae Domingensis: 1-732. New York.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Na, H.R. & Choi, H.K. (2009). Two unrecorded species of Najas L. (Hydrocharitaceae) from Korean flora: N. orientalis and N. oguraensis Korean Journal of Plant Taxonomy 39: 107-113.
  • Nikitina, E.V. & Protopopov, G.F. (eds.) (1952). Flora Kirgizskoi SSR 1: 1-103. Frunze : Izd-vo KirgizFAN SSSR.
  • Ohwi, J. (1984). Flora of Japan (in English): 1-1067. Smithsonian Institution, Washington, D.C.
  • Ovczinnikov, P.N. (ed.) (1957). Flora Tadzhikskoi SSR 1: 1-547. Izd-vo Akademii nauk SSSR, Moskva.
  • Pavlov, N.V. (ed.) (1956). Flora Kazakhstana 1: 1-354. Alma-Ata, Izd-vo Akademii nauk Kazakhskoi SSR.
  • Rechinger. K.H. (1971). Flora Iranica 78-86 Naturhistorisches Museums Wien.
  • Takhtajan, A.L. (ed.) (2006). Konspekt Flora Kavkaza 2: 1-466. Editio Universitatis Petropolitanae.
  • Townsend, C.C. & Guest, E. (eds.) (1985). Flora of Iraq 8: 1-440. Ministry of Agriculture & Agrarian Reform, Baghdad.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
  • Van Steenis, C.G.G.J. (ed.) (1960-1972). Flora Malesiana 6: 1-1023. Noordhoff-Kolff N.V., Djakarta.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
  • Zuloaga, F.O. & Morrone, O. (eds.) (1996). Pteridophyta, Gymnospermae y Angiospermae (Monocotyledoneae) Catálogo de las Plantas Vasculares de la República Argentina 1: 1-323. Missouri Botanical Garden, St. Louis.
  • van Proosdij, A.S.J. (2001). Arnoldo's Zakflora ed. 3: 1-287. Walburg Pers, Zutphen.

Literature

Kew Backbone Distributions

  • (2005- continuously updated). Flora of Tropical East Africa.
  • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
  • Adams, C.D. (1972). Flowering Plants of Jamaica: 1-848. University of the West Indies, Mona.
  • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
  • Berhaut, J. (1988). Flore illustrée du Sénégal 9: 1-522. Gouvernement du Sénégal, Ministère du développement rural direction des eaux et forêta, Dakar.
  • Bosser, J. & al. (1984). Flore des Mascareignes 191-201 IRD Éditions, MSIRI, RBG-Kew, Paris.
  • Boulos, L. (1995). Flora of Egypt Checklist: i-xii, 1-287. Al Hadara Publishing, Cairo.
  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • Chaudhary, S.A. (2001). Flora of the Kingdom of Saudi Arabia 3: 1-368. Ministry of Agriculture & Water, Riyadh.
  • Correll, D.S. & Correll, H.B. (1982). Flora of the Bahama Archipelago: 1-1692. J.Cramer, Vaduz.
  • Dassanayake (ed.) (2000). A Revised Handbook to the Flora of Ceylon 14: 1-307. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
  • Davis, P.H. (ed.) (1984). Flora of Turkey and the East Aegean Islands 8: 1-632. Edinburgh University Press, Edinburgh.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • Edwards, S., Demissew, S. & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Espejo Serena, A. & López-Ferrari, A.R. (1996). Las Monocotiledóneas Mexicanas una Sinopsis Florística 1(6): 1-116. Consejo Nacional de la Flora de México, México D.F.
  • Flora of North America Editorial Committee (2000). Flora of North America North of Mexico 22: 1-352. Oxford University Press, New York, Oxford.
  • GBIF (2008- continuously updated). Global Biodiversity Information Facility http://www.gbif.org/.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
  • Ghazanfar, S.A. (1992). An Annotated Catalogue of the Vascular Plants of Oman and their Vernacular names Scripta Botanica Belgica 2: 1-153.
  • Glazkova, E.A. (2012). On some rare vascular plant species from the islands of the Vyborg bay (Leningrad region) Botanicheskii Zhurnal. Moscow & Leningrad 97: 512-523.
  • Grubov, V.I. (2001). Key to the Vascular Plants of Mongolia 1: 1-411. Science Publishers, Inc. Enfield, USA. Plymouth, U.K.
  • H?, P.-H. (1993). Câyc? Vi?tnam. An Illustrated flora of Vietnam 3(1): 1-603d. Pham-hoang Ho, Montréal.
  • Hansen, A. & Sunding, P. (1985). Flora of Macaronesia. Checklist of vascular plants. 3. revised edition Sommerfeltia 1: 5-103.
  • Hashmi, R.Y. & Omer, S. (1987). Flora of Pakistan 176: 1-6. Department of Botany, University of Karachi, Karachi.
  • Jongbloed, M., Western, R.A. & Boer, B. (2000). Annotated Check-list for plants in the U.A.E.: 1-90. Zodiac Publishing, Dubai.
  • Jørgensen, P.M. & León-Yánes, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador: 1-1181. Missouri Botanical Garden Press, St. Louis.
  • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
  • Kharkevich, S.S. (ed.) (1987). Plantae Vasculares Orientalis Extremi Sovietici 2: 1-448. Nauka, Leningrad.
  • Krasnoborov, I.M. (ed.) (2000). Flora of Siberia 1: 1-189. Scientific Publishers, Inc., Enfield, Plymouth.
  • 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.
  • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.
  • Leon, H. (1946). Flora de Cuba 1: 1-441. Cultural S. A., La Habana.
  • Liogier, H.A. & Martorell, L.F. (2000). Flora of Puerto Rico and Adjacent Islands: a Systematic Synopsis ed. 2: 1-382. Editorial de la Universidad de Puerto Rico, San Juan.
  • Lowden, R.M. (1986). Taxonomy of the Genus Najas L. (Najadaceae) in the Neotropics Aquatic Botany 24: 147-184.
  • 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.
  • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
  • Moscoso, R.H. (1943). Catalogus Florae Domingensis: 1-732. New York.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Nikitina, E.V. & Protopopov, G.F. (eds.) (1952). Flora Kirgizskoi SSR 1: 1-103. Frunze : Izd-vo KirgizFAN SSSR.
  • Ohwi, J. (1984). Flora of Japan (in English): 1-1067. Smithsonian Institution, Washington, D.C.
  • Ovczinnikov, P.N. (ed.) (1957). Flora Tadzhikskoi SSR 1: 1-547. Izd-vo Akademii nauk SSSR, Moskva.
  • Pavlov, N.V. (ed.) (1956). Flora Kazakhstana 1: 1-354. Alma-Ata, Izd-vo Akademii nauk Kazakhskoi SSR.
  • Rechinger. K.H. (1971). Flora Iranica 78-86 Naturhistorisches Museums Wien.
  • Takhtajan, A.L. (ed.) (2006). Konspekt Flora Kavkaza 2: 1-466. Editio Universitatis Petropolitanae.
  • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
  • Townsend, C.C. & Guest, E. (eds.) (1985). Flora of Iraq 8: 1-440. Ministry of Agriculture & Agrarian Reform, Baghdad.
  • Triest, L. & Symoens, J.J. (1983). Flore d'Afrique Centrale (Zaïre - Rwanda - Burundi) Najadaceae: 1-9. Jardin Botanique National de Belgique, Meise.
  • Triest, L. (1989). Najadaceae Flora of Tropical East Africa: 1-9.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
  • Van Steenis, C.G.G.J. (ed.) (1960-1972). Flora Malesiana 6: 1-1023. Noordhoff-Kolff N.V., Djakarta.
  • Zuloaga, F.O. & Morrone, O. (eds.) (1996). Pteridophyta, Gymnospermae y Angiospermae (Monocotyledoneae) Catálogo de las Plantas Vasculares de la República Argentina 1: 1-323. Missouri Botanical Garden, St. Louis.
  • de Moura Júnior, E.G. & al. (2015). Updated checklist of aquatic macrophytes from Northern Brazil Acta Amazonica 45: 111-132.
  • van Proosdij, A.S.J. (2001). Arnoldo's Zakflora ed. 3: 1-287. Walburg Pers, Zutphen.

Flora of Tropical East Africa

  • L., Sp. Pl.: 1015 (1753).

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

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/