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Lemna minor - L.
                 
Common Name Duckweed, Common duckweed
Family Lemnaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Still water[17]. Mesotrophic to eutrophic, quiet waters, in suboceanic, cool-temperate regions with relatively mild winters[270].
Range A cosmopolitan plant, found in most regions of the world, including Britain, absent from Tropics.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Water Plants Full sun

Summary

Lemna minor Duckweed,  Common duckweed


Lemna minor Duckweed,  Common duckweed
   
Physical Characteristics
 
Lemna minor is a PERENNIAL.
It is hardy to zone (UK) 4 and is not frost tender. It is in flower from Jun to July. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant)It is noted for attracting wildlife.
Suitable pH: neutral and basic (alkaline) soils. It cannot grow in the shade. It can grow in water.

Synonyms

Habitats
 Pond;
Edible Uses
Edible Parts: Leaves.
Edible Uses:

Occasionally used as a vegetable[183]. No further details are given but we have found the flavour to be less than desirable[K].
Medicinal Uses


Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Alterative;  Antirheumatic;  Antiscorbutic;  Astringent;  Depurative;  Diuretic;  Febrifuge;  Homeopathy;  
Ophthalmic;  Sedative;  Skin.

The whole plant is alterative, antipruritic, antiscorbutic, astringent, depurative, diuretic, febrifuge and soporific[176, 178, 240]. It is used in the treatment of colds, measles, oedema and difficulty in urination[176]. It is applied externally in the treatment of skin diseases and is used as a wash for ophthalmia[240]. The plant is used in homeopathy[240], but the report gives no more details.
Other Uses
Repellent.

The dried plant repels mosquitoes[178].
Cultivation details
Requires a sunny position in still water that is rich in nitrates and lime[200]. Duckweed can be a troublesome pond weed though it is easily controlled by simply scooping it out[56, 200]. This scooped out material makes an excellent addition to the compost heap. The growing plant is a good food source for fish and birds, as well as providing cover for creatures in the pond[200]. Although it is towards the limit of its climatic range in Britain, it often flowers here if growing in a sheltered sunny position[17]. It over-winters in temperate areas by means of resting buds which sink to the bottom of the pond in the late autumn and rise again in the spring[200].
Propagation
Seed - we have no information on this species but, since it spreads so rapidly by division, it really needs no extra help once it is in a pond.
Other Names
Found In
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Lemna gibbaGibbous Duckweed, Swollen duckweed, Windbags, Duckweed30
Lemna trisulcaStar Duckweed01
Spirodela polyrrhizaGreat Duckweed, Common duckmeat12
Wolffia arrhizaLeast Duckweed, Spotless watermeal40
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Expert comment
 
Author
L.
Botanical References
17200
Links / References
For a list of references used on this page please go here
Readers comment
 
Elizabeth H.
uriceira Sun Jun 21 2009

The Charms of Duckweed An introduction to the smallest flowering plants

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Subject : Lemna minor  

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