Hydrocharis morsus-ranae L.
  • Sp. Pl. : 1036 (1753)
  • Frogbit


Cite taxon page as 'WFO (2023): Hydrocharis morsus-ranae L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000769381. Accessed on: 30 Jan 2023'

General Information

Herbs, to 20 cm. Rhizomes absent; stStolon buds with 1 root. Leaves floating or, in dense vegetation, emergent; blade 1.2--6 ´ 1.3--6.3 cm; primary veins forming 75--90° angle with midvein, broadly curving, aerenchyma confined to midvein region (not margin to margin as in Limnobium), individual aerenchyma space (located ca. 1 mm from either side of midvein) 0.1--0.5 mm across its longest axis, 0.1--0.5 mm wide, 1 mm from midvein. Flowers: staminate flowers 1--5 in each spathe; pedicel to 4 cm; stamens 9--12 in 4 whorls; filaments basally not obviously connate; pistillate flowers solitary; pedicels to 9 cm; styles 2-fid for less than ½ length. Seeds 1--1.3 mm. 2n = 28 (Netherlands).

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Much like Limnobium spongia in aspect, but the lvs more consistently cordate-orbicular, less obviously spongy beneath, and with more broadly arching (even initially descending) lateral veins; dioecious; stolons with seasonally dimorphic terminal buds; pet ca 1 cm, 2–3 times as long as the sep, white with a yellow basal spot; outer (antesepalous) stamens basally connate with those of the third cycle; anthers ca 1 mm long and wide; styles 6, ca 4 mm overall; 2n=28. Slow-moving water, ditches, and pools; native of Europe, intr. and spreading, from Que. to s. Ont. and n. N.Y. along the St. Lawrence and Ottawa rivers and along lakes Erie and Ontario.

  • Provided by: [E].Manual of Vascular Plants of Northeastern US and Canada
    • Source: [
    • 3
    • ]. 

    Morphology

    Kısa gövdelerde yapraklı, uzun gövdelerde yapraksız su bitkileri. Yapraklar tabanda; aya dairesel, 2,5-5 cm çapında, tabanda yüreksi; yaprak sapı 9-12 cm uzunluğunda. Çiçekler tek eşeyli. Erkek çiçek sıpatası saplı, 1-4 çiçekli; dişi çiçek sıpatası sapsız, 1 çiçekli. Taç yapraklar 3 adet, çanak yapraklardan çok büyük, geniş tersyumurtamsı, 6-10 mm uzunluğunda, beyaz, tabanda sarı benekli. Erkek organlar 9-12 adet, dıştakilerden biri çoğunlukla verimsiz. Meyve 10-15 × 15-17 mm, tersyumurtamsı. Tohumlar armutsu, yüzeyi sivilceli.

  • Provided by: [F].The Illustrated Flora of Turkey
    • Wasserpflanze mit rundlichen, tief herzförmigen Schwimmblättern, diese jederseits mit 2 bogigen, unverzweigten Hauptnerven, rosettig auf 5–10 cm langen Stielen, Durchmesser 1,5–5 cm, mit lanzettlichen, bis 2 cm langen Nebenblättern. Zweihäusig. Blü

    • Provided by: [A].Flora Helvetica – Illustrierte Flora der Schweiz
      • Source: [
      • 2
      • ]. 

      Ecology

      6–8. Stehende, bis 1 m tiefe, warme und nährstoffreiche Gewässer, kollin. M, AN zerstreut.

    • Provided by: [A].Flora Helvetica – Illustrierte Flora der Schweiz
      • Source: [
      • 2
      • ]. 

      Literature

      SELECTED REFERENCES

      Gadella, T. W. J. and E. Kliphuis. 1973. Chromosome numbers of flowering plants in The Netherlands. VI. Proc. K. Ned. Acad. Wet., Ser. C, 76: 303---311.

    • Provided by: [B].Flora of North America @ efloras.org
      • Source: [
      • 1
      • ]. 

      Distribution Map

       
      • Native distribution
      Found in
      • Europe Northern Europe Ireland

      Nationally Preferred Names

      NameLanguageCountry
      FrogbitEnglishIE
      Greim an loscáinIrishIE
      KurbağazehiriTurkishTR

      Other Local Names

      NameLanguageCountry
      FroschbissGermanCH
      Lus loscáinIrishIE
      Morso di ranaItalianCH
      Bior-rósIrishIE
      European frog-bit
      MorèneFrenchCH

        Bibliography

       Information From

      Flora Helvetica – Illustrierte Flora der Schweiz
      http://www.flora-helvetica.ch
      Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
      • A All Rights Reserved
      Flora of North America @ efloras.org
      http://www.efloras.org/flora_page.aspx?flora_id=1
      'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
      • B Flora of North America Association
      Alismataceae
      http://www.worldfloraonline.org/organisation/Alismataceae
      World Flora Online Data. 2021.
      • C CC0 1.0 Universal (CC0 1.0).
      Hydrocharitaceae
      http://www.worldfloraonline.org/organisation/Hydrocharitaceae
      World Flora Online Data. 2021.
      • D CC0 1.0 Universal (CC0 1.0).
      Manual of Vascular Plants of Northeastern US and Canada
      https://www.nybg.org/
      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.
      • E Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
      The Illustrated Flora of Turkey
      Güner, A., Kandemir, A., Menemen, Y., Yıldırım, H., Aslan, S., Ekşi, G., Güner, I. ve Çimen, A.Ö. (edlr.) (2018). Resimli Türkiye Florası, Cilt 2. ANG Vakfı Nezahat Gökyiğit Botanik Bahçesi Yayınları. İstanbul.
      • F Resimli Türkiye Florası (the Illustrated Flora of Turkey).
      Irish Vernacular Names
      https://www.missouribotanicalgarden.org/plant-science/plant-science/research-staff/article/380/wyse-jackson-peter-s.aspx
      • G All Rights Reserved
      World Flora Online Consortium
      http://www.worldfloraonline.org/organisation/WFO
      World Flora Online Data. 2017.
      • H CC0 1.0 Universal (CC0 1.0).