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Description |
Geographic Range [top]
Range Description: Lemna minor is widespread throughout Europe, with scattered populations in central Asia, on the west coast and in central North America, in the eastern half of Africa, Australia (Victoria) and New Zealand. It is presumed to have been introduced to Australia and New Zealand (Landolt 1986).
Countries occurrence:
Native:
Afghanistan; Åland Islands; Albania; Algeria; American Samoa (American Samoa); Andorra; Angola (Angola); Anguilla; Antarctica; Antigua and Barbuda; Argentina; Armenia (Armenia); Aruba; Austria; Azerbaijan; Bahamas; Bahrain; Bangladesh; Barbados; Belarus; Belgium; Belize; Benin; Bermuda; Bhutan; Bolivia, Plurinational States of; Bonaire, Sint Eustatius and Saba; Bosnia and Herzegovina; Botswana; Bouvet Island; Brazil; British Indian Ocean Territory; Brunei Darussalam; Bulgaria; Burkina Faso; Burundi; Cambodia; Cameroon; Canada; Cape Verde; Cayman Islands; Central African Republic; Chad; Chile; China; Christmas Island; Cocos (Keeling) Islands; Colombia; Comoros; Congo; Congo, The Democratic Republic of the; Cook Islands; Costa Rica; Côte dIvoire; Croatia; Cuba; Curaçao; Cyprus; Czech Republic; Denmark; Disputed Territory; Djibouti; Dominica; Dominican Republic; Ecuador; Egypt; El Salvador; Equatorial Guinea; Eritrea; Estonia; Ethiopia; Faroe Islands; Fiji; Finland; France; French Guiana; French Polynesia; French Southern Territories; Gabon; Gambia; Georgia; Germany; Ghana; Gibraltar; Greece; Greenland; Grenada; Guadeloupe; Guam; Guatemala; Guernsey; Guinea; Guinea-Bissau; Guyana; Haiti; Heard Island and McDonald Islands; Holy See (Vatican City State); Honduras; Hong Kong; Hungary; Iceland; India; Iran, Islamic Republic of; Iraq; Ireland; Isle of Man; Israel; Italy; Jamaica; Japan; Jersey; Jordan; Kazakhstan; Kenya; Kiribati; Korea, Democratic Peoples Republic of; Korea, Republic of; Kuwait; Kyrgyzstan; Lao Peoples Democratic Republic; Latvia; Lebanon; Lesotho; Liberia; Libya; Liechtenstein; Lithuania; Luxembourg; Macao; Macedonia, the former Yugoslav Republic of; Madagascar; Malawi; Malaysia; Maldives; Mali; Malta; Marshall Islands; Martinique; Mauritania; Mauritius; Mayotte; Mexico; Micronesia, Federated States of ; Moldova; Monaco; Mongolia; Montenegro; Montserrat; Morocco; Mozambique; Myanmar; Namibia; Nauru; Nepal; Netherlands; New Caledonia; Nicaragua; Niger; Nigeria; Niue; Norfolk Island; Northern Mariana Islands; Norway; Oman; Pakistan; Palau; Palestinian Territory, Occupied; Panama; Papua New Guinea; Paraguay; Peru; Philippines; Pitcairn; Poland; Portugal; Puerto Rico; Qatar; Réunion; Romania; Russian Federation; Rwanda; Saint Barthélemy; Saint Helena, Ascension and Tristan da Cunha; Saint Kitts and Nevis; Saint Lucia; Saint Martin (French part); Saint Pierre and Miquelon; Saint Vincent and the Grenadines; Samoa; San Marino; Sao Tomé and Principe; Saudi Arabia; Senegal; Serbia (Serbia); Seychelles; Sierra Leone; Singapore; Sint Maarten (Dutch part); Slovakia; Slovenia; Solomon Islands; Somalia; South Africa; South Georgia and the South Sandwich Islands; Spain; Sri Lanka; Sudan; Suriname; Svalbard and Jan Mayen; Swaziland; Sweden; Switzerland; Syrian Arab Republic; Tajikistan; Tanzania, United Republic of; Thailand; Timor-Leste; Togo; Tokelau; Tonga; Trinidad and Tobago; Tunisia; Turkey; Turkmenistan; Turks and Caicos Islands; Tuvalu; Uganda; Ukraine; United Arab Emirates; United Kingdom; United States (Georgia); United States Minor Outlying Islands; Uruguay; Uzbekistan; Vanuatu; Venezuela, Bolivarian Republic of; Viet Nam; Virgin Islands, British; Virgin Islands, U.S.; Wallis and Futuna; Western Sahara; Yemen; Zambia; Zimbabwe
Introduced:
Australia; New Zealand
Additional data:
? Upper elevation limit (metres): 3000
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population:
This species is widespread and abundant throughout its known range. There is no detailed information available on population size. In parts of Europe it is heavily over-recorded for L. gibba and it would be difficult to know whether there has been a change in the population.
Current Population Trend: Unknown
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology:
L. minor is particularly common in lakes, ponds, canals, rice fields and ditch systems but will occur in most still or slow-flowing water body types in most conditions except in very oligotrophic or acidic water. It is even capable of growing in a trickle of water over vertical surfaces, such as canal lock gates or seepages in cliffs.
Systems: Freshwater
Use and Trade [top]
Use and Trade: The whole plant is alterative, antipruritic, antiscorbutic, astringent, depurative, diuretic, febrifuge and soporific. It is used in the treatment of colds, measles, oedema and difficulty in urination in China. It is applied externally in the treatment of skin diseases and is used as a wash for ophthalmia in India. The plant may also be used in homeopathy in India.
Threats [top]
Major Threat(s):
There are no known past, ongoing, or future threats to this species
Conservation Actions [top]
Conservation Actions:
There are no conservation measures in place and none needed.
Citation: Zhuang, X. 2014. Lemna minor. The IUCN Red List of Threatened Species 2014: e.T164057A43121007. http://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T164057A43121007.en. Downloaded on 28 July 2016.
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