1. Family: Polygonaceae Juss.
    1. Genus: Polygonum L.
      1. Polygonum arenastrum Boreau

        This species is accepted, and is native to Europe, West Himalaya, Africa and Asia-Temperate..

    [FZ]

    Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

    Type
    Type from France.
    Habit
    A glabrous, prostrate or ± decumbent, rarely erect, annual herb, forming dense mats A glabrous, prostrate or ± decumbent, rarely erect, annual herb, forming dense mats.
    Stem
    Stems up to 70 cm long, much branched, leafy, becoming somewhat woody at the base Stems up to 70 cm long, much branched, leafy, becoming somewhat woody at the base.
    Leaves
    Leaves all similar, subsessile, 5–15 × 2–6 mm, elliptic to elliptic.lanceolate, acute at the apex, attenuate to the base Leaves all similar, subsessile, 5–15 × 2–6 mm, elliptic to elliptic-lanceolate, acute at the apex, attenuate to the base.
    Ocrea
    Ocrea silvery at least in the upper part, 3–5 mm long, ferrugineous below, lacerate Ocrea silvery at least in the upper part, 3–5 mm long, ferrugineous below, lacerate.
    Flowers
    Flowers shortly pedicellate, in axillary fascicles of 2–4 flowers, surrounded by leafy bracts Flowers shortly pedicellate, in axillary fascicles of 2–4 flowers, surrounded by leafy bracts.
    Perianth
    Perianth 1.5–2 × 2.5–3 mm, 5-lobed; lobes greenish with white or pinkish margins, at least twice as long as the perianth tube, flat and slightly imbricate Perianth 1.5–2 × 2.5–3 mm, 5-lobed; lobes greenish with white or pinkish margins, at least twice as long as the perianth tube, flat and slightly imbricate.
    Stamens
    Stamens 6, as long as the perianth; filaments filiform Stamens 6, as long as the perianth; filaments filiform.
    Ovary
    Ovary 1–1.5 × 1.5–2 mm; styles 3, free, almost sessile
    Ecology
    Roadsides; c. 1500 m.
    Distribution
    Like P. aviculare this is a temperate region species which has become a subcosmopolitan weed. It is polymorphic and partially autogamic. Zimbabwe ZIM E
    Pistil
    Ovary 1–1.5 × 1.5–2 mm; styles 3, free, almost sessile.
    Fruits
    Nut dull but sometimes shiny on the edges, 2–2.5 mm long, trigonous, rarely lenticular, with 2 broad and convex sides and one narrower concave side, striate-punctate. Nut dull but sometimes shiny on the edges, 2–2.5 mm long, trigonous, rarely lenticular, with 2 broad and convex sides and one narrower concave side, striate-punctate.

    Images

    Distribution

    Native to:

    Albania, Algeria, Altay, Amur, Austria, Azores, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Buryatiya, Central European Rus, Chita, Corse, Czechoslovakia, Denmark, East Aegean Is., East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Ireland, Irkutsk, Italy, Kamchatka, Khabarovsk, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., Madeira, Magadan, Mongolia, Morocco, Netherlands, North European Russi, Northwest European R, Norway, Poland, Portugal, Primorye, Romania, Sakhalin, Sardegna, Sicilia, Sinai, South European Russi, Spain, Sweden, Switzerland, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, West Himalaya, West Siberia, Yakutskiya, Yugoslavia

    Introduced into:

    Alabama, Alaska, Alberta, Arizona, Arkansas, British Columbia, California, Chile Central, Chile South, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Labrador, Louisiana, Maine, Manitoba, Maryland, Masachusettes, Mexico Northwest, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Carolina, North Dakota, Northwest Territorie, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Zimbabwe

    Polygonum arenastrum Boreau appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Cope, T.A. [RBG 226], Great Britain K000914097
    Cope, T.A. [RBG 530], Great Britain K000914098

    First published in Fl. Centre France, ed. 3, 2: 559 (1857)

    Accepted by

    • Parslow, R. & Bennallick, I. (2017). The new flora of the Isles of Scilly: 1-539. Parslow Press.
    • Gilman, A.V. (2015). New flora of Vermont Memoirs of the New York Botanical Garden 110: 1-614.
    • Vladimirov, V., Dane, F. & Kit Tan (2015). New floristic records in the Balkans: 26 Phytologia Balcanica 21: 53-91.
    • Schuster, T.M., Reveal, J.L., Bayly, M.J. & Kron, K.A. (2015). An updated molecular phylogeny of Polygonoideae (Polygonaceae): relationships of Oxygonum, Pteroxygonum, and Rumex, and a new circumscription of Koenigia Taxon 64: 1188-1208.
    • Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
    • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
    • Dobignard, A. & Chatelain, C. (2013). Index synonymique de la flore d'Afrique du nord 5: 1-451. Éditions des conservatoire et jardin botaniques, Genève.
    • Akeroyd, J.R. (2013). Docks and Knotweeds of Britain and Ireland: 1-258. Botanical Society of Britain and Ireland.
    • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
    • Tupitsyna, N.N. (2012). Revision of Polygonaceae Juss. in the flora of southern part of Krasnoyarsk region Turczaninowia 15(2): 44-48.
    • Mateos, M.A. & Valdés, B. (2009). Catálogo de la flora vascular del Rif occidental calizo (N de Marruecos). I Selaginellaceae - Rosaceae Lagascalia 29: 105-257.
    • Srivastava, R.C. (2008). Certain new combinations and new synonyms in Polygonaceae of India Indian Forester 134: 1699.
    • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.
    • Krasnoborov, I.M. & Malyshev, L.I. (2003). Flora of Siberia 5: 1-305. Scientific Publishers, Inc., Enfield, Plymouth.
    • Boulos, L. (1999). Flora of Egypt 1: 1-419. Al Hadara Publishing, Cairo.
    • Tutin, T.G. & al. (eds.) (1993). Flora Europaea ed. 2, 1: 1-581. Cambridge University Press.
    • Kharkevich, S.S. (ed.) (1989). Plantae Vasculares Orientalis Extremi Sovietici 4: 1-380. Nauka, Leningrad.
    • Davis, P.H. (ed.) (1967). Flora of Turkey and the East Aegean Islands 2: 1-581. Edinburgh University Press, Edinburgh.

    Literature

    Flora Zambesiaca
    • Fl. Centre France ed. 3, 2: 559 (1857).
    Kew Backbone Distributions
    • Gilman, A.V. (2015). New flora of Vermont Memoirs of the New York Botanical Garden 110: 1-614.
    • Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
    • Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.
    • Garcillán, P.P. & al. (2013). Plantas no nativas naturalizadas de la península de Baja California, México Botanical Sciences 91: 461-475.
    • Dobignard, A. & Chatelain, C. (2013). Index synonymique de la flore d'Afrique du nord 5: 1-451. Éditions des conservatoire et jardin botaniques, Genève.
    • Akeroyd, J.R. (2013). Docks and Knotweeds of Britain and Ireland: 1-258. Botanical Society of Britain and Ireland.
    • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
    • Tupitsyna, N.N. (2012). Revision of Polygonaceae Juss. in the flora of southern part of Krasnoyarsk region Turczaninowia 15(2): 44-48.
    • 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.
    • Mateos, M.A. & Valdés, B. (2009). Catálogo de la flora vascular del Rif occidental calizo (N de Marruecos). I Selaginellaceae - Rosaceae Lagascalia 29: 105-257.
    • Rodríguez, R., Grau, J., Baeza, C. & Davies, A. (2008). Lista comentada de las plantas vasculares de los Nevados de Chillan, Chile Gayana. Botánica 65: 153-197.
    • Saldivia, P. & Rojas, G. (2008). Nuevos registros y antecedentes de la familia Cactaceae para Chile en la region de Aisen Gayana. Botánica 65: 198-208.
    • Srivastava, R.C. (2008). Certain new combinations and new synonyms in Polygonaceae of India Indian Forester 134: 1699.
    • Malyschev, L.I., Peshkova, G.A. & Baikov, K.S. (eds.) (2007). Flora of Siberia 14: 1-210. Scientific Publishers, Inc., Enfield, Plymouth.
    • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.
    • Flora of North America Editorial Committee (2005). Flora of North America North of Mexico 5: 1-656. Oxford University Press, New York, Oxford.
    • Krasnoborov, I.M. & Malyshev, L.I. (2003). Flora of Siberia 5: 1-305. Scientific Publishers, Inc., Enfield, Plymouth.
    • Boulos, L. (1999). Flora of Egypt 1: 1-419. Al Hadara Publishing, Cairo.
    • Tutin, T.G. & al. (eds.) (1993). Flora Europaea ed. 2, 1: 1-581. Cambridge University Press.
    • Kharkevich, S.S. (ed.) (1989). Plantae Vasculares Orientalis Extremi Sovietici 4: 1-380. Nauka, Leningrad.
    • Davis, P.H. (ed.) (1967). Flora of Turkey and the East Aegean Islands 2: 1-581. Edinburgh University Press, Edinburgh.
    • B.A.Fedtschenko & al. (1937). Flora Turkmenii 2: 1-217. Turkmenskoe gosudarstvennoe izd., Ashkhabad.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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