Code
LEMTN
Growth form
Broadleaf
Biological cycle
Vivacious
Habitat
Aquatic
🗒 Synonyms
| synonym | Lemna angolensis Welw. |
| synonym | Lemna aoukikusa subsp. hokurikuensis T.Beppu & Murata |
| synonym | Lemna aoukikusa T.Beppu & Murata |
| synonym | Lemna blatteri McCann |
| synonym | Lemna eleanorae McCann |
| synonym | Lemna minima Blatt. & Hallb., nom. illeg. |
| synonym | Lemna paucicostata Hegelm. ex Engelm. |
| synonym | Lemna paucicostata var. membranacea Hegelm. |
| synonym | Lemna perpusilla var. trinervis Austin |
| synonym | Lemna trinervis (Austin) Small |
🗒 Common Names
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| English |
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| French |
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| Italian |
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📚 Overview
Description
Global description
Lemna aequinoctialis is a small floating plant with leaves of 3 to 4 mm in diameter, in the shape of lens, provided with only one root per blade. The flowers are rare and difficult to observe. It grows in stagnant waters, such as ponds, calm rivers and flooded rice fields.
Port
Small floating plant consisted essentially of a small leaf and a root.
Root system
A single root up to 3.5 cm long with a tuberous, laterally winged sheath with an acute cap at the top.
Leaf
Single obovate-elliptical lenticular leaf, entire margin, rounded apex, 1-6.5 mm long, 1-4.5 mm wide, thin, with almost flat dorsal and ventral sides, marked by 3 inconspicuous ribs starting from the root insertion point. The leaves of daughter plants bud near the point of root insertion in a slit on the underside of the mother leaf.
Flower
Flower in a side pocket, very reduced, formed of a stamen drawn up above the surface of water and carrying an anther with two lodges. Concave stigma.
Fruit
The fruit is 0.5 to 0.8 mm long and 0.4 to 0.7 mm wide, non-winged and containing one seed.
Seed
Brownish seed, 0.4 to 0.8 mm long and 0.3 to 0.7 mm wide, with 8-26 longitudinal and 30 to 80 transverse ribes. It falls from the wall of the fruit when ripe.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Nomenclature and Classification
No Data
📚 Natural History
Cyclicity
There is content in another language. Please click here to read it. (Français)
Lemna aequinoctialis is a vivacious species that multiplies essentially by vegetative propagation, by producing daughter plants. It can also produce seeds.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Ecology
Lemna aequinoctialis is an aquatic species floating on the surface of the water, it develops in ponds, calm waters and flooded rice fields in coastal and fluvioleacustrine sandy areas, in Sudano-Guinean cliamte on vertisols and on bar soil.
China: It grows along lakesides, ponds, rice paddies and ditches; in warm-temperate to tropical climates; from sea level to 2800 m.
Colombia: Species present from 0 to 1000 m altitude.
Nicaragua: Lemna aequinoctialis is a common species in still waters throughout the country, from 0 to 1300 m altitude.
Reunion: Species sometimes present in dense populations in the coastal canals and ponds, particularly at the Etang de Saint Paul.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Habitat and Distribution
Description
Origin
Lemna aequinoctialis is native to all the warm tropical regions of the world.
Worldwide distribution
It was introduced in Greece.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Occurrence
No Data
📚 Demography and Conservation
Risk Statement
Local harmfulness
Benin: Lemna aequinoctialis is rare and scarce in rice fields.
Senegal: Rare and scarce species in rice fields.
Reunion: In the absence of flooded rice fields, this species is not a weed of crops in Reunion, but it can occasionally be considered as native invasive species in coastal canals and ponds.
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Uses and Management
Management
Global control
For advice on weed control of floating aquatic weeds in irrigated and lowland rice in Africa, see : http://portal.wikwio.org/document/show/22
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Information Listing
Global Biodiversity Information Facility (GBIF)
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
References
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1968. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain
- Akoègninou A., van der Burg W.J., van der Maesen L.J.G. 2006. Flore Analytique du Bénin. Backhuys Publishers, Wageningen. 1034 pp.
- Plants of the World Online https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:526159-1
- Berhaut J., 1988. Flore illustrée du Sénégal ; Monocotylédones et Ptéridophytes Tome IX. p 409-410.
- The World Flora Online http://www.worldfloraonline.org/taxon/wfo-0000224404
- Flora of China http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=222000203
Information Listing > References
- Hutchinson, J., Dalziel, J.M., Keay, R.W.J., Hepper, F.N. 1968. Flora of west tropical africa. The Whitefriars Press, London & Tonbridge, Great Britain
- Akoègninou A., van der Burg W.J., van der Maesen L.J.G. 2006. Flore Analytique du Bénin. Backhuys Publishers, Wageningen. 1034 pp.
- Plants of the World Online https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:526159-1
- Berhaut J., 1988. Flore illustrée du Sénégal ; Monocotylédones et Ptéridophytes Tome IX. p 409-410.
- The World Flora Online http://www.worldfloraonline.org/taxon/wfo-0000224404
- Flora of China http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=222000203
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Lemna%2520aequinoctialis
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
🐾 Taxonomy
| Root | Root |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Liliopsida |
| Order | Alismatales |
| Family | Araceae |
| Genus | Lemna |
| Species | Lemna aequinoctialis Welw. |
📊 Temporal Distribution
📷 Related Observations
