Hydrocotyle verticillata Thunb.
  • Hydrocotyle


Cite taxon page as 'WFO (2020): Hydrocotyle verticillata Thunb. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000726628. Accessed on: 30 Nov 2020'

General Information

Hydrocotyle verticillata Thunb., Hydrocotyle 5. 1798.

Hierbas acuáticas o subacuáticas, rastreras, carnosas. Hojas peltadas, orbiculares, 0.5–6 mm de diámetro, crenadas o levemente 8–15-lobadas; pecíolo delgado, 0.5–35 cm de largo. Inflorescencias espigas discontinuas, simples o poco ramificadas, 1–20 cm de largo, generalmente más cortas que las hojas, flores 2–15, verticiladas, sésiles o subsésiles. Fruto elipsoide, 1–4 mm de diámetro, generalmente más ancho que largo, las costillas obvias y agudas.

Poco común en márgenes de lagos y lagunas, zona atlántica; 0–40 m; fl y fr durante todo el año; Danin 76-31-2, Stevens 19844; en hábitats acuáticos y subacuáticos en las regiones templadas y tropicales de América y en el Viejo Mundo, donde posiblemente sea introducida. Las 3 especies subacuáticas de hojas peltadas, H. bonariensis, H. umbellata y H. verticillata son casi iguales vegetativamente, sin embargo se distinguen entre sí por tener las flores en cimas o umbelas ramificadas, en umbelas simples, o en espigas verticiladas respectivamente. Colecciones que presentan algunas umbelas simples y algunas flores largamente pediceladas (Guzmán 1037, Stevens 9504), las cuales han sido generalmente consideradas como variedades de H. verticillata, sugieren la posibilidad de hibridación entre esta especie y H. umbellata (en la cual las hemos ubicado en este tratado). El problema se complica más aún por el hecho de que la distribución de estas especies es parcialmente coextensiva y su reproducción es mayormente vegetativa, por lo que será necesario realizar investigaciones biosistemáticas para el mejor entendimiento de estas especies.

  • Provided by: [F].Flora de Nicaragua
    • Source: [
    • 5
    • ]. 

    "Stems filiform, creeping; lvs orbicular, peltate, to 6 cm, commonly with 8–14 shallow lobes; infl (except in depauperate plants) a simple or once to thrice forked spike to 15 cm or even more, bearing 2–several whorls of fls, these rarely more than 7 per whorl; fr 3–4 mm wide, truncate to rounded at base, the margins acute. Mass. to Fla. and Tex., chiefly near the coast; w. U.S. and trop. Amer. June–Aug. Typical H. verticillata has the fls and frs sessile or subsessile. Plants with distinctly pedicellate fls and frs, the pedicels to 1 cm, occur over the same range and have been called var. triradiata (A. Rich.) Fernald. (H. canbyi; H. australis)"

  • Provided by: [G].New York Botanical Garden
    • Source: [
    • 6
    • ]. 

    Morphology

    Inflorescence an interrupted verticillate spike, approximately equal in length to the subtending leaf (axis occasionally branched to produce 2 or more parallel spikes).

  • Provided by: [C].Plants Of the World Online Portal - FZ
    • Lamina up to 45 (60) mm. in diameter, circular to broadly elliptic, with 8–13 main veins radiating from the petiole; margin shallowly crenately lobed.

    • Provided by: [C].Plants Of the World Online Portal - FZ
      • Fruit 2 × 4 mm., reddish-brown, laterally flattened, broadly ellipsoid, base cuneate, pedicel 1 mm. to obsolete; apex broadly and shallowly emarginate, stylopodium depressed to almost obsolete, styles short and spreading. Fruit ribs well developed, commissure scarcely depressed.

      • Provided by: [C].Plants Of the World Online Portal - FZ
        • Flowers small, inconspicuous, 2–7 in each verticil, initially closely packed together, the axis only expanding to separate the verticils as the fruit begins to mature.

        • Provided by: [C].Plants Of the World Online Portal - FZ
          • Leaves peltate, on long petioles up to 15 cm.

          • Provided by: [C].Plants Of the World Online Portal - FZ
            • Glabrous creeping herb, rooting freely at the nodes; stems delicate, terete, brownish-white.

            • Provided by: [C].Plants Of the World Online Portal - FZ
              • Leaves peltate, the lamina mostly l–5(–6)cm. in diameter, with 9–12 shallow, entire or shallowly and narrowly notched or subcrenulate lobes terminating the radiating nerves; petiole slender, 3–16 cm.

              • Provided by: [H].Plants Of the World Online Portal - FTEA
                • Source: [
                • 4
                • ]. 

                Fruit strongly laterally compressed, broader than long, purplish brown when ripe, 2.75–3.5 mm. wide, the ribs sharply defined with very narrow greenish margins, shortly (± 0.75–1 mm.) pedicellate or sessile, truncate or very shortly and abruptly cuneate at the base, apex broadly and shallowly emarginate; stylopodia ± obsolete; styles spreading, slender, ± 0.5 mm.

              • Provided by: [H].Plants Of the World Online Portal - FTEA
                • Source: [
                • 4
                • ]. 

                Glabrous creeping herb, rooting freely with white, slender rootlets from the nodes; stem slender, terete, pale greenish or brownish.

              • Provided by: [H].Plants Of the World Online Portal - FTEA
                • Source: [
                • 4
                • ]. 

                Petals purplish green, narrowly triangular, blunt, ± 0.75 mm.

              • Provided by: [H].Plants Of the World Online Portal - FTEA
                • Source: [
                • 4
                • ]. 

                Inflorescence an interrupted spike of 1–5 umbels, the lowest 2 umbels being 5–12 mm. apart in fruit; peduncle 3.5–8 cm. Umbels (2–)3–5(–7)-flowered, all initially approximate but separating as fruit begins to form; involucre of 3–5 purplish, membranous, oblong-ovate minute bracts.

              • Provided by: [H].Plants Of the World Online Portal - FTEA
                • Source: [
                • 4
                • ]. 

                Fig. 1/4, 5.

              • Provided by: [H].Plants Of the World Online Portal - FTEA
                • Source: [
                • 4
                • ]. 

                Creeping herb, glabrous. Leaves shallowly crenately lobed, peltate. Inflorescence an interrupted spike. Flowers white to greenish yellow.

              • Provided by: [D].e-Flora of South Africa
                • Source: [
                • 7
                • ]. 

                Creeping perennial rooting at nodes, stems to 30 cm. Leaves peltate, margins crenate. Flowers whorled in interrupted spikes, white. Fruits depressed-globose.

              • Provided by: [D].e-Flora of South Africa
                • Source: [
                • 9
                • ]. 

                Habitat

                In damp places near rivers and in marshes and ditches.

              • Provided by: [D].e-Flora of South Africa
                • Source: [
                • 7
                • ]. 

                Distribution Map

                 
                • Native distribution
                Found in
                • Southern America Brazil Paraní
                • Rio Grande do Sul
                • Santa Catarina
                • Espirito Santo
                • Minas Gerais
                • Rio de Janeiro
                • São Paulo
                • Mato Grosso do Sul

                  Bibliography

                 Information From

                Araliaceae
                World Flora Online Data. 2017.
                • A CC0 1.0 Universal (CC0 1.0).
                MBG Floras Images
                http://www.tropicos.org/ImageSearch.aspx
                Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
                • B Missouri Botanical Garden
                Plants Of the World Online Portal - FZ
                https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
                http://www.plantsoftheworldonline.org/terms-and-conditions
                • C
                e-Flora of South Africa
                e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
                • D All Rights Reserved
                Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
                http://floradobrasil.jbrj.gov.br
                Brazil Flora G (2014): Brazilian Flora 2020 project - Projeto Flora do Brasil 2020. v393.147. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro. Dataset/Checklist. doi:10.15468/1mtkaw
                • E Group Brazil Flora, REFLORA Program
                Flora de Nicaragua
                http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
                WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
                • F Missouri Botanical Garden
                New York Botanical Garden
                Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
                • G Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
                Plants Of the World Online Portal - FTEA
                https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
                http://www.plantsoftheworldonline.org/terms-and-conditions
                • H
                World Flora Online consortium
                http://www.worldfloraonline.org/organisation/WFO
                World Flora Online Data. 2018.
                • I CC0 1.0 Universal (CC0 1.0).