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   6 Feb 2023      ()
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Lemna minuta   (Least Duckweed)


Lemna minuta  (ARACEAE.) 
Images for this profile are taken from the Maltese Islands after year 2000.

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Profile Date Dec-2007 (taxon update: none)
Citation for this page Mifsud, S. (2022). Lemna minuta - datasheet created on Dec-2007. Retrieved from MaltaWildPlants.com on 06-Feb-2023

Nomenclature and Basic Information

Species name :

Lemna minutaRaf.
Published in Med. Repos. Original Essays Intelligence Phys. 5: 353 (1808)

Synonyms :
(basionym or principal syn.)

Lemna valdiviana Phil.
Full list of synonyms : [Euro+Med] [PlantList] [IPNI] [POWO] [Catalogue of Life] [Worldplants.de]

Plant Family :

Araceae Juss. (The Arum Family)
10 species from the Araceae family are recorded from the Maltese Islands.

English name(s) :

Least Duckweed

Maltese name(s) :

Lemna iż-żgħira

Status for Malta :

Invasive Alien. Species that was introduced in Malta any time after year 1492 (Columbus' discovery of the New World), and spreads rapidly to form large invasive populations to the detriment of native flora or ecosystems.

Frequency :

Very Common     Common    Frequent    Scarce     Rare    Very rare    Extinct

Growth form :

Raunkiaer lifeform [info]: HYDROPHYTE ( living only or mostly in water )
Germination [info]: Monocotyledon

Legal Protection :

Not legally protected till the last update of this website (2/Mar/2022)

Red List (1989) :

Not listed in the Red Data Book of the Maltese Islands

Flowering Time :

February – June

Colour of Flowers:

Inconspicuous

Toxicity:

Not particularly toxic

Name Derivation :

Lemna:
minuta:

Planting in rural areas :

Can be planted in rural areas according to ERA Guidelines

Remarks :

Recentely reported as a neophyte from Malta (see paper in links below) but possibly occurring in Nalta for a much longer time and simply neglected with the widespread Lemna minor, of whch difference is a minimal to the naked eye unless plants are not studied carefully.


Description, Habitat and Distribution
Habitat in Europe: Naturalized in several localities in warmer parts of Europe.
Preferred habitat in Malta: Flooded areas, namely open reservoirs, stagnant water bodies in valleys, temporary ponds. Nitrophilous plant hence often present in water polluted from nitrate leeching.
Botanical Description: Fronds 2-6 mm, floating, opaque, frequently very asymmetrical, oblong or falcate, rounded at the apex, entire, more or less flat and light green on both surfaces, obscurely 1-veined. 2n = 40.
Chromosome number: 2n=40
Distributional range: Originally reported from S.W. France (Lac Marion, near Biarritz)
Native region outside Europe: South America and southern parts of North America

Distributional map in Europe
and the Mediterranean region (2018):
Occurrences in Europe.
(from Flora Europaea pre year 1993):
Introduced in  France (incl. Monaco and Channel Islands but excluding Corse)
Occurrences in Europe and the Mediterranean region.
(from Euro+Med Checklist, 2019)
  Country codes  
[Be(B) nBr Cr nGa Ge Gr Hb(E) He Ho Hu Is It nSa Uk(U)]

Links & Further literature (0 papers)

Google Web

Google Images

Google Scholar

Research Gate

Wikipedia

JSTOR

GBIF

Med Checklist

Cat. of Life

EoL

IPNI

World Flora Online

Plants of the World Online

Vienna Virt. Herb.

RBGE Herbarium

KEW Herbarium

MNHN

Arkive

IUCN

CABI
Kindly Email if there are papers and publications about local studies or information about this species to be included in the list above.

Species Images (4 images)
   Lemna minuta   -   Image Code: LMNMU-0.
   Lemna minuta   -   Image Code: LMNMU-1.
   Lemna minuta   -   Image Code: LMNMU-2.
   Lemna minuta   -   Image Code: LMNMU-3.

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