Plantae > Tracheophyta > Liliopsida > Alismatales > Hydrocharitaceae > Hydrocharis > Hydrocharis morsus-ranae

Hydrocharis morsus-ranae (common frogbit)

Synonyms: Hydrocharis asarifolia; Hydrocharis batrachyodegma; Hydrocharis cordifolia; Hydrocharis morsus-ranae f. terrestris; Hydrocharis rotundifolia; Sagittaria triflora

Wikipedia Abstract

Hydrocharis morsus-ranae, frogbit, is a flowering plant belonging to the genus Hydrocharis in the family Hydrocharitaceae. In North America, it is referred to as common frogbit or European frog's-bit to distinguish it from the related American Frogbit (Limnobium spongia).It is a small floating plant resembling a small water lily. It bears small, three-petalled white flowers.
View Wikipedia Record: Hydrocharis morsus-ranae

Invasive Species

Hydrocharis morsus-ranae is a free-floating herbaceous annual aquatic that can reach 20cm in length. It does well in calm open waters, and can be found in marshes, ditches and swamps. H. morsus-ranae produces dense floating mat of vegetation which restrict available light, dissolved gases, and nutrients. This species displaces native flora and is perhaps impacting the fauna. There is currently no management information available but there is currently a study that started in 2003 and will go through 2005 that is looking into and researching methods of controlling H. morsus-ranae on the Great Lakes and St. Lawrence River.
View ISSG Record: Hydrocharis morsus-ranae


Light Preference [2]  Mostly Sunny
Soil Acidity [2]  Neutral
Soil Fertility [2]  Rich
Soil Moisture [2]  Submerged
Lifespan [1]  Perennial
Structure [3]  Herb


Name Countries Ecozone Biome Species Report Climate Land
Central & Western Europe Austria, Belgium, Byelarus, Czech Republic, Denmark, France, Germany, Liechtenstein, Lithuania, Luxembourg, Netherlands, Poland, Russia, Slovakia, Switzerland, Ukraine, United Kingdom Palearctic Temperate Floodplain River and Wetlands    
Eastern Iberia Andorra, France, Spain Palearctic Temperate Coastal Rivers    
Lake Onega - Lake Ladoga Finland, Russia Palearctic Large Lakes    
Northern Baltic Drainages Denmark, Finland, Norway, Russia, Sweden Palearctic Polar Freshwaters    
St. Lawrence Canada, United States Nearctic Temperate Coastal Rivers    
Upper Danube Austria, Croatia, Czech Republic, Germany, Hungary, Italy, Poland, Slovakia, Slovenia, Switzerland Palearctic Temperate Floodplain River and Wetlands    
Volga - Ural Kazakhstan, Russia Palearctic Temperate Floodplain River and Wetlands    

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Alte Elster und Riecke Teil I und II 273 Germany  
Arun Valley 1205 England, United Kingdom
Astrakhanskiy Biosphere Reserve Zapovednik Ia 167827 Astrakhan, Russia
Belovezhskaya Pushcha Biosphere Reserve National Park II 218515 Belarus
Berlinchener See, Berlinchener Luch 900 Germany  
Bialowieza National Park II 11126 Poland
Boschi del Ticino 50788 Italy  
Bosco di Chiusi e Paduletta di Ramone 1035 Italy  
Buckow - Waldsieversdorfer Niederungslandschaft 372 Germany  
Buckow-Steckelsdorf-Göttlin 713 Germany  
Burnham Beeches 946 England, United Kingdom  
Börnicke 1411 Germany  
Canneti del Lago Maggiore 561 Italy  
Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd 163340 Wales, United Kingdom
Dahmetal 1970 Germany  
Dammer Moor 420 Germany  
Dorset Heaths (Purbeck and Wareham) and Studland Dunes 5491 England, United Kingdom
Drahendorfer Spreeniederung 1528 Germany  
Elbtal zwischen Mühlberg und Greudnitz 12121 Germany  
Flusslandschaft Elbe Biosphere Reserve 925242 Germany  
Fluten von Arnsnesta 280 Germany  
Glieningmoor 372 Germany  
Gramzow-Seen 1532 Germany  
Große Röder zwischen Großenhain und Medingen 2387 Germany  
Großer Teich Torgau und benachbarte Teiche 2293 Germany  
Gränert 1150 Germany  
Görner See 585 Germany  
Humber Estuary 90582 England, United Kingdom
Isserstedter Holz - Mühltal - Windknollen 1999 Germany  
Kersdorfer See 491 Germany  
Khopersky Zapovednik Ia 47103 Russia  
Kleiner Plessower See 251 Germany  
Krayner Teiche/Lutzketal 1542 Germany  
Kremitz und Fichtwaldgebiet 1603 Germany  
Krielower See 392 Germany  
Königsberger See, Kattenstieg See 908 Germany  
Königsbrücker Heide 17129 Germany  
Lago di Chiusi 1982 Italy  
Lago di Montepulciano 1194 Italy  
Lago di Porta 385 Italy  
Leinawald 4280 Germany  
Lietzener Mühlental 345 Germany  
Lindower Rhin und Fristower Plagge 472 Germany  
Lippeaue zwischen Hangfort und Hamm 1520 Germany  
Läppträsket 492 Finland  
Löcknitztal 1207 Germany  
Matheswall/Schmielensee 265 Germany  
Maxsee 863 Germany  
Moncapricesee 281 Germany  
Monticchie 588 Italy  
Moritzburger Teiche und Wälder 1386 Germany  
Moselaue bei Nennig 467 Germany  
Müggelspreeniederung 1558 Germany  
NSG Hetter-Millinger Bruch, mit Erweiterung 1633 Germany  
Neißegebiet 6054 Germany  
Niederspreer Teichgebiet und Kleine Heide Hähnichen 4636 Germany  
North Norfolk Coast 7926 England, United Kingdom  
North Somerset and Mendip Bats 1387 England, United Kingdom
North York Moors 108930 England, United Kingdom
Oberlausitzer Heide - und Teichlandschaft Nature Reserve IV 32467 Germany  
Padule di Fucecchio 5142 Italy  
Palude Brabbia 1137 Italy  
Paludi di Ostiglia 304 Italy  
Parco Regionale Campo dei Fiori 3207 Italy  
Parco Regionale Oglio Sud 9941 Italy  
Pevensey Levels 8860 England, United Kingdom  
Point Pelee National Park II 5764 Ontario, Canada
Prierowsee 520 Germany  
Rheinsberger Rhin und Hellberge Ergänzung 769 Germany  
Risaie della Lomellina 76457 Italy  
Riserva Regionale Lanca di Gerole 2916 Italy  
Riserva naturale Tevere Farfa 5098 Italy  
Rodewaldsches Luch 344 Germany  
Rondeau Provincial Park II 5035 Ontario, Canada
Röderaue und Teiche unterhalb Großenhain 5253 Germany  
Schweinert 273 Germany  
Schweinitzer Fließ 1071 Germany  
Severn Estuary/ Môr Hafren 182155 England/Wales, United Kingdom
Spreebögen bei Briescht 272 Germany  
Spreewiesen südlich Beeskow 1194 Germany  
Stadthavel 639 Germany  
Streganzsee-Dahme und Bürgerheide 4097 Germany  
Teiche um Zschorna und Kleinnaundorf 561 Germany  
The Broads 14554 England, United Kingdom  
The Wash and North Norfolk Coast 266284 England, United Kingdom
Treplin-Alt Zeschdorfer Fließtal 310 Germany  
Tsentral'no-Lesnoy Biosphere Reserve Ia 62630 Russia  
Tsentral'no-Sibirskiy Biosphere Reserve Ia 2521510 Krasnoyarsk, Russia
Untere Pulsnitzniederung 1569 Germany  
Valli del Mincio 4814 Italy  
Vallées de la Dendre et de la Marcq (Ath; Ellezelles; Flobecq; Frasnes-lez-Anvaing; Lessines) 1308 Belgium  
Vereinigte Mulde und Muldeauen 14592 Germany  
Vogelschutzgebiet 'Unterer Niederrhein' 63775 Germany  
Voronezhskiy Biosphere Reserve 95835 Russia  
Waldecker Schloßgrund - Langes Tal 1505 Germany  
Wehrdamm/Mellensee/Kleiner Wünsdorfer See 1725 Germany  
Weißes Fenn und Dünenheide 446 Germany  
Wernsdorfer See 296 Germany  
Wiepersdorf 1816 Germany  
Zhuvintas Zapovednik 18223 Lithuania  


Bagous puncticollis[4]
Galerucella grisescens <Unverified Name>[4]
Hydrellia cochleariae[4]
Hydrellia griseola (Rice leafminer)[4]
Hydrellia mutata[4]
Rhopalosiphum nymphaeae (water lily aphid)[4]


Europe to Caucasus, NW. Africa;



Attributes / relations provided by
1PLANTATT - Attributes of British and Irish Plants: Status, Size, Life History, Geography and Habitats, M. O. Hill, C. D. Preston & D. B. Roy, Biological Records Centre, NERC Centre for Ecology and Hydrology (2004)
2ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
3Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
4Biological Records Centre Database of Insects and their Food Plants
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Protected Areas provided by Natura 2000, UK data: © Crown copyright and database right [2010] All rights reserved. Ordnance Survey Licence number 100017955
GBIF Global Biodiversity Information Facility
Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access