Family:
Araceae Juss.
Genus:
Lemna L.

Lemna aequinoctialis Welw.

This species is accepted, and its native range is Tropics & Subtropics. It is has environmental uses, as a medicine and for food.

[CATE]

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

General Description
Fronds 1-6.5 mm long, 0.8-4.5 mm wide, 1-3 times as long as wide; usually with one papule which is located on the upper surface above the node and is smaller than the one near the tip; wing of the root sheath 1-2 1/2 times as long as wide. INFLORESCENCE: Plants often flowering and fruiting. INFRUCTESCENCE: Fruit 0.5-0.8 mm long, 0.4-0.7 mm wide, not winged; style 0.05-0.20 mm long; seed 0.45-0.80 mm long, 0.3-0.7 mm thick, brownish, with 8-26 distinct longitudinal and 30-80 lateral ribs, falls out of the fruit wall after ripening; outer seed coat with 2-4 subepidermal cell layers.
Distribution
Distribution Subtropical and tropical regions of the whole world; introduced to more northern regions by rice cultures.
Diagnostic
Seeds with 8-26 distinct ribs, fall out of fruit wall after ripening; wing of the root sheath 1-2.5 times as long as wide; mostly one papaule above the node which is smaller than the one near tthe tip. Found in warmer regions of the whole world.

[FSOM]

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

Morphology Leaves
Fronds floating, pale green, ovate-elliptic, asymmetrical, 1.5–6 mm long, 3-nerved; daughter fronds remaining connected
Morphology Roots
Root with a winged sheath; root-cap acute
Morphology Reproductive morphology Seeds
Seed solitary, with 8–26 longitudinal ribs, falling out of the fruit after ripening.
Distribution
S1 throughout tropical and warmer parts of the world.
Ecology
Altitude c. 200 m.
Note
This has previously often been treated as L. perpusilla Torrey, but according to Kandeler & Hügel in Pl. Syst. Evol. 123: 83–96 (1974) and Landolt (1986) L. perpusilla is a North American species distinct from the pantropical L. aequinoctialis. First record from Somalia.

[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
Nativa en Colombia; Alt. 0 - 1000 m.; Amazonia, Llanura del Caribe, Valle del Magdalena.
Morphology General Habit
Hierba, acuática
Conservation
No Evaluada

[UPFC]
Distribution
Biogeografic region: Amazonia, Caribbean. Elevation range: 0–1000 m a.s.l. Native to Colombia. Colombian departments: Amazonas, Antioquia, Atlántico, Bolívar, Cesar, Córdoba, Cundinamarca, Huila, Magdalena, Santander, Sucre, Tolima.
Habit
Herb, Aquatic.
Conservation
IUCN Red List Assessment (2021): LC. National Red List of Colombia (2021): Potential LC.
Ecology
Habitat according IUCN Habitats Classification: forest and woodland, savanna, shrubland, native grassland, artificial - terrestrial.

[UPFC]
Use Environmental
Environmental uses.
Use Food
Used for food.
Use Medicines
Medical uses.

Native to:

Afghanistan, Alabama, Aldabra, Angola, Argentina Northeast, Arizona, Arkansas, Aruba, Bahamas, Belize, Benin, Bermuda, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cabinda, California, Cambodia, Cameroon, Cape Provinces, Cape Verde, Caprivi Strip, Caroline Is., Cayman Is., Central African Repu, Chad, Chagos Archipelago, China North-Central, China South-Central, China Southeast, Christmas I., Cocos (Keeling) Is., Colombia, Comoros, Congo, Costa Rica, Cuba, Delaware, District of Columbia, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Fiji, Florida, Free State, French Guiana, Gabon, Galápagos, Gambia, Georgia, Ghana, Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Haiti, Hawaii, Honduras, Illinois, India, Iowa, Ivory Coast, Jamaica, Japan, Jawa, Kansas, Kentucky, Kenya, Khabarovsk, KwaZulu-Natal, Leeward Is., Lesotho, Lesser Sunda Is., Liberia, Louisiana, Madagascar, Malawi, Malaya, Mali, Maluku, Manchuria, Maryland, Mauritania, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mississippi, Missouri, Mozambique, Mozambique Channel I, Namibia, Nebraska, Nepal, Netherlands Antilles, New Caledonia, New Mexico, Nicaragua, Niger, Nigeria, North Carolina, Northern Provinces, Northern Territory, Oklahoma, Pakistan, Panamá, Paraguay, Peru, Philippines, Puerto Rico, Qinghai, Queensland, Rodrigues, Rwanda, Réunion, Samoa, Senegal, Seychelles, Sierra Leone, South Carolina, Southwest Caribbean, Sudan, Sulawesi, Sumatera, Suriname, Swaziland, Taiwan, Tanzania, Tennessee, Texas, Thailand, Togo, Tonga, Trinidad-Tobago, Turks-Caicos Is., Uganda, Venezuela, Venezuelan Antilles, Virginia, Western Australia, Windward Is., Wisconsin, Zambia, Zaïre, Zimbabwe

Introduced into:

Greece

English
Duckweed

Lemna aequinoctialis Welw. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1979 Wright, C. [324], Japan K000499485
Drummond, R.B. [4141], Kenya 23247.000
Wild, H. [4264], Zimbabwe 23589.000
Mear, A. [S.R.G.H. 468], Zimbabwe 24296.000
Wild, H. [4766 & 4767], Zimbabwe 24297.000
South Africa 44233.000
Cowie, I.D. [1339], Australia 56370.000
s.coll. [s.n.], India K000499498
Superintendent [s.n.], West Bengal K000499500
[illegible] [s.n.], India K000499499 Unknown type material
Milne-Redhead, E. [11415], Kenya Lemna trinervis 33949.000

First published in Apont.: 578 (1859)

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.
  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • 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.
  • 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.
  • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Haigh, A. & Boyce, P.C. (2012). Flora Zambesiaca 12(1): 1-54. Royal Botanic Gardens, Kew.
  • Hammel, B.E. & al. (2003). Manual de Plantas de Costa Rica 2: 1-694. Missouri Botanical Garden Press, St. Louis.
  • Hernandez, J. (2007). In Hawaiian rainforests: exotic aroid ecologies Aroideana 30: 91-97.
  • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
  • Idárraga-Piedrahita, A., Ortiz, R.D.C., Callejas Posada, R. & Merello, M. (eds.) (2011). Flora de Antioquia: Catálogo de las Plantas Vasculares 2: 1-939. Universidad de Antioquia, Medellín.
  • Iwatsuki, K., Boufford, D.E. & Ohba, H. (2016). Flora of Japan IVb: 1-335. Kodansha Ltd., Tokyo.
  • Lejoly, J., Ndjele, L. & Geerinck, D. (2008). Flore de la Tshopo (RD Congo) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 24: 1-37.
  • 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.
  • Mansor, M., Boyce, P.C., Othman, A.S. & Sulaiman, B. (2012). The Araceae of peninsular Malaysia: 1-146. Penerbit Universiti Sains Malaysia.
  • Nadruz Coelho, M.A. (2010). A família Araceae na reserva natural Vale, Linhares, Espírito Santo, Brasil Boletim do Museu de Biologia Mello Leitão, n.s., 28: 41-87.
  • Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras.
  • Powell, A.M. & Worthington, R.D. (2018). Flowering plants of Trans-Pecos Texas and ajacent areas: 1-1444. BRIT Press.
  • Sosef, M.S.M. & al. (eds.) (2010). Flore du Gabon 41: 1-75. Muséum National D'Histoire Naturelle, Paris.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
  • de Moura Júnior, E.G. & al. (2015). Updated checklist of aquatic macrophytes from Northern Brazil Acta Amazonica 45: 111-132.

Literature

Catálogo de Plantas y Líquenes de Colombia

  • 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

CATE Araceae

  • Landolt, E. 1986. The family of Lemnaceae - a monographic study, 1. Veröff. Geobot. Isnt. ETH (Stift. Rübel). 71: 1-563

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.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • 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.
  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • Chou, S., Chhnang, P. & Kim, Y. (2016). A Checklist for the Seed Plants of Cambodia: 1-272. National Institute of Biological Resources, Korea.
  • Christopherson, E. (1935). Flowering Plants of Samoa Bernice P. Bishop Museum Bulletin 128: 1-221.
  • 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.
  • 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.
  • Hammel, B.E. & al. (2003). Manual de Plantas de Costa Rica 2: 1-694. Missouri Botanical Garden Press, St. Louis.
  • Hernandez, J. (2007). In Hawaiian rainforests: exotic aroid ecologies Aroideana 30: 91-97.
  • Iwatsuki, K., Boufford, D.E. & Ohba, H. (2016). Flora of Japan IVb: 1-335. Kodansha Ltd., Tokyo.
  • 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 Somalia

  • Flora Somalia, Vol 4, (1995) Author: by M. Thulin [updated by M. Thulin 2008]

Useful Plants and Fungi of Colombia

  • Bernal, R., Gradstein, S.R., & Celis, M. (eds.). (2020). Catálogo de Plantas y Líquenes de Colombia. v1.1. Universidad Nacional de Colombia. Dataset/Checklist. https://doi.org/10.15472/7avdhn
  • Diazgranados et al. (2021). Catalogue of plants of Colombia. Useful Plants and Fungi of Colombia project. In prep.
  • Diazgranados, M., Allkin, B., Black N., Cámara-Leret, R., Canteiro C., Carretero J., Eastwood R., Hargreaves S., Hudson A., Milliken W., Nesbitt, M., Ondo, I., Patmore, K., Pironon, S., Turner, R., Ulian, T. (2020). World Checklist of Useful Plant Species. Produced by the Royal Botanic Gardens, Kew. Knowledge Network for Biocomplexity.
  • FPI (2021). Food Plants International. https://fms.cmsvr.com/fmi/webd/Food_Plants_World?homeurl=https://foodplantsinternational.com/plants/
  • GBIF.org (2021). GBIF species matching tool. https://www.gbif.org/tools/species-lookup
  • IUCN (2021). The IUCN Red List of Threatened Species. Version 2021-2. https://www.iucnredlist.org.
  • Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (2019). Lista de especies vedadas por la resolución 213 de 1977. 8256 especies. http://i2d.humboldt.org.co/ceiba/resource.do?r=le_plantaspriorizadas_2019
  • Medicinal Plant Names Services (MPNS) v.10 (2021); http://mpns.kew.org/
  • RBG, Kew (ed.) (1999). Survey of Economic Plants for Arid and Semi-Arid Lands (SEPASAL) database. Royal Botanic Gardens, Kew, London.

  • CATE Araceae

    Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Catálogo de Plantas y Líquenes de Colombia

    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Colombian resources for Plants made Accessible

    http://creativecommons.org/licenses/by/3.0/

  • Flora of Somalia

    Flora of Somalia
    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 2022. 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 2022. 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/

  • 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/

  • Useful Plants and Fungi of Colombia

    http://creativecommons.org/licenses/by-nc-sa/3.0