1. Family: Araceae Juss.
    1. Genus: Pistia L.
      1. Pistia stratiotes L.

        This species is accepted, and its native range is Tropical & Subtrop.

    [CATE]

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

    General Description
    LEAVES sessile in a rosette, 1-5 in. long, 1-2 in. broad, cuneate-oblong or cuneate-obovate, notched or entire at the broadly rounded or subtruncate apex, more or less pubescent on both surfaces, tomentose with long matted hairs at the base. INFLORESCENCE: Spathe 31/2-5 lin. long, more or less hairy or villous outside, glabrous within, pale green; limb ovate, subobtuse, with a broad white ciliolate margin. Ovary pale green, pubescent. Neuter organs frill-like, pale green. Anthers dirty white. Morphological characters are the same as those of the genus. Plants aquatic, floating. Roots many, pendulous in water, feathery. Leaves in rosettes, 1.3–10 × 1.5–6cm. Spathe white, 5–12mm.
    Distribution
    Widely distributed in the warmer regions of both hemispheres.
    Phenology
    Fl. May–Nov.
    Habitat
    Water fields, lakes, ponds.
    Tropical wetlands; floating aquatic in open, tranquil, freshwater habitats.
    [FTEA]

    Araceae, S.J. Mayo. Flora of Tropical East Africa. 1985

    Habit
    Plant reproducing vegetatively by stolons.
    Leaves
    Leaf-blade up to 14 cm. long, 8 cm. broad, spathulate, obconic or oblong, apex rounded to truncate, green, paler and more densely pubescent beneath; main veins 5–7, prominently winged beneath.
    Spathe
    Spathe to 1.3 cm. long, whitish green, margins and exterior fimbriate-pilose.
    Fruits
    Berry to 0.5 cm. long, 0.3 cm. broad.
    Seeds
    Seeds to 0.2 cm. long, 0.1 cm. in diameter, reddish brown.
    Figures
    Fig. 17.
    Habitat
    Open, still, freshwater; 0–1800 m.
    Distribution
    K1 K3 K4 K5 K6 K7 P T1 T2 T3 T4 T5 T6 T7 pantropical
    [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 y cultivada en Colombia; Alt. 0 - 2000 m.; Amazonia, Andes, Llanura del Caribe, Orinoquia, Pacífico, Valle del Cauca, Valle del Magdalena.
    Habit
    Hierba, acuática
    Conservation
    Preocupación Menor
    [FWTA]

    Araceae, F. N. Hepper. Flora of West Tropical Africa 3:1. 1968

    Habit
    A floating herb, propagates mainly by stolons and forming immense colonies
    Roots
    Roots numerous, fibrous, reaching the bottom in shallow water
    Flowers
    Flowers obscure beneath the rosette of glandular viscid leaves.
    Vernacular
    Water lettuce.
    [CATE]
    Use
    The plants are cultivated for animal feed and are used to treat swelling and urinary tract infections.

    Images

    Distribution

    Native to:

    Afghanistan, Andaman Is., Angola, Argentina Northeast, Assam, Bangladesh, Belize, Benin, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cabinda, Cambodia, Cameroon, Cape Provinces, Caprivi Strip, Central African Repu, Chad, China South-Central, China Southeast, Colombia, Comoros, Congo, Costa Rica, Cuba, Dominican Republic, East Himalaya, Ecuador, Egypt, El Salvador, Equatorial Guinea, Ethiopia, Florida, Free State, French Guiana, Gabon, Galápagos, Gambia, Ghana, Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Hainan, Haiti, Honduras, India, Ivory Coast, Jamaica, Jawa, Kenya, KwaZulu-Natal, Laccadive Is., Laos, Leeward Is., Lesotho, Liberia, Louisiana, Madagascar, Malawi, Malaya, Maldives, Mali, Maluku, Mauritania, Mauritius, Mexican Pacific Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mississippi, Mozambique, Myanmar, Namibia, Nansei-shoto, Nepal, Netherlands Antilles, New Guinea, Nicaragua, Nicobar Is., Niger, Nigeria, Northern Provinces, Northern Territory, Pakistan, Panamá, Paraguay, Peru, Philippines, Puerto Rico, Queensland, Rwanda, Senegal, Sierra Leone, Somalia, South China Sea, Sri Lanka, Sudan, Sulawesi, Suriname, Swaziland, Taiwan, Tanzania, Texas, Thailand, Togo, Trinidad-Tobago, Uganda, Uruguay, Venezuela, Venezuelan Antilles, Vietnam, West Himalaya, Windward Is., Zambia, Zaïre, Zimbabwe

    Introduced into:

    Alabama, Aruba, Bermuda, Canary Is., Colorado, Hawaii, Illinois, Italy, Japan, Kazakhstan, Netherlands, New Caledonia, New York, Palestine, St.Helena, Ukraine

    Pistia stratiotes L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    KwaZulu-Natal K000499481
    Wild, H. [26411], Zimbabwe 24295.000
    Giles [s.n.], Borneo 29047.737
    Simpson, N.D. [5194] 36482.000
    s.coll. [Cat. no. 5200] K001120104
    s.coll. [Cat. no. 5200] K001120105
    s.coll. [Cat. no. 5200] K001120106
    s.coll. [Cat. no. 5200] K001120107

    First published in Sp. Pl.: 963 (1753)

    Accepted by

    • Iwatsuki, K., Boufford, D.E. & Ohba, H. (2016). Flora of Japan IVb: 1-335. Kodansha Ltd., Tokyo.
    • de Moura Júnior, E.G. & al. (2015). Updated checklist of aquatic macrophytes from Northern Brazil Acta Amazonica 45: 111-132.
    • Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
    • 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.
    • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
    • von Raab-Straube, E. & Raus, T. (eds.) (2013). Euro+Med-Checklist notulae, 2 Willdenowia 43: 239-249.
    • Haigh, A. & Boyce, P.C. (2012). Flora Zambesiaca 12(1): 1-54. Royal Botanic Gardens, Kew.
    • Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L.A., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012). Flora of Thailand 11(2): 101-325. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Lambdon, P. (2012). Flowering plants & ferns of St Helena: 1-624. Pisces publications for St Helena nature conservation group.
    • Mansor, M., Boyce, P.C., Othman, A.S. & Sulaiman, B. (2012). The Araceae of peninsular Malaysia: 1-146. Penerbit Universiti Sains Malaysia.
    • Kurniawan, A., Adjie, B. & Boyce, P.C. (2011). Studies on the Araceae of Sulawesi I: New taxa of Schismatoglottis and Homalomena, and a preliminary checklist and keys for Sulawesi Acta Phytotaxonomica et Geobotanica 61: 40-50.
    • 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.
    • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
    • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • 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.
    • Gomes Gonçalves, E. & Nadruz Coelho, M.A. (2009). Araceae Flora dos estados de Goiás e Tocantins 39: 1-109. Universidade Federal de Goiás.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Hernandez, J. (2007). In Hawaiian rainforests: exotic aroid ecologies Aroideana 30: 91-97.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • 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.
    • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
    • Hammel, B.E. & al. (2003). Manual de Plantas de Costa Rica 2: 1-694. Missouri Botanical Garden Press, St. Louis.
    • 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.
    • Ara, H. (2001). An Annotated Checklist of Aroids of Bangladesh Bangladesh Journal of Plant Taxonomy 8(2): 19-34.
    • Stevens, W.D., Ulloa U., C., Pool, A. & Montiel, O.M. (2001). Flora de Nicaragua Monographs in Systematic Botany from the Missouri Botanical Garden 85: i-xlii, 1-2666.
    • Arias Granda, I. (1998). Flora de la República de Cuba, Ser. A., 1(1): 1-46.
    • MacKee, H.S. (1994). Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie, ed. 2: 1-164. Museum national d'histoire naturelle, Paris.
    • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.

    Literature

    Flora of West Tropical Africa
    • Morton, W. Afr. Lilies & Orch. fig. 61
    • Wild in Kirkia 2: 13, t. 2.
    • Berhaut, Fl. Sén. 184
    • Chev. Bot. 685
    • F.T.A. 8: 140
    • Sp. Pl. 963 (1753)
    Kew Backbone Distributions
    • Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542. New York Botanical Garden.
    • Iwatsuki, K., Boufford, D.E. & Ohba, H. (2016). Flora of Japan IVb: 1-335. Kodansha Ltd., Tokyo.
    • Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
    • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
    • von Raab-Straube, E. & Raus, T. (eds.) (2013). Euro+Med-Checklist notulae, 2 Willdenowia 43: 239-249.
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Lambdon, P. (2012). Flowering plants & ferns of St Helena: 1-624. Pisces publications for St Helena nature conservation group.
    • Mansor, M., Boyce, P.C., Othman, A.S. & Sulaiman, B. (2012). The Araceae of peninsular Malaysia: 1-146. Penerbit Universiti Sains Malaysia.
    • Kurniawan, A., Adjie, B. & Boyce, P.C. (2011). Studies on the Araceae of Sulawesi I: New taxa of Schismatoglottis and Homalomena, and a preliminary checklist and keys for Sulawesi Acta Phytotaxonomica et Geobotanica 61: 40-50.
    • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Hernandez, J. (2007). In Hawaiian rainforests: exotic aroid ecologies Aroideana 30: 91-97.
    • Ara, H. (2001). An Annotated Checklist of Aroids of Bangladesh Bangladesh Journal of Plant Taxonomy 8(2): 19-34.
    • MacKee, H.S. (1994). Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie, ed. 2: 1-164. Museum national d'histoire naturelle, Paris.
    • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
    Flora of Tropical East Africa
    • Vollesen in Opera Bot. 59:108 (1980).
    • Bogner in Fl. Madag. 31: 66, t. 12 (1975).
    • A.D.Q. Agnew, Upland Kenya Wild Flowers p. 706 (1974).
    • R. O. Williams, Useful and Ornamental Plants in Zanzibar and Pemba p. 414 (1949).
    • Peter in Nachr. Ges. Wiss. Göttingen, Math.-Phys. Kl. 1929 (3): 187 (1930).
    • Engl. in A. Engler, Das Pflanzenreich 73 (IV. 23F): 259, fig. 63 (1920).
    • Engl., Die Vegetation Der Erde, IX, Pflanzenwelt Afrikas 2: 257, fig. 173 (1908)
    • N.E. Br. in Flora of Tropical Africa 8: 140 (1901).
    • Engl., Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 132 (1895).
    • L., Sp. Pl.: 963 (1753).

    Sources

    Art and Illustrations in Digifolia
    Digital Image © Board of Trustees, RBG Kew

    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

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

    Flora of West Tropical Africa
    Flora of West Tropical 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

    Neotropikey
    Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
    http://creativecommons.org/licenses/by/3.0