Code
ELODU
Growth form
Sedge
Biological cycle
vivacious
Habitat
aquatic
ELODU
Growth form
Sedge
Biological cycle
vivacious
Habitat
aquatic
🗒 Synonyms
| synonym | Andropogon dulcis Burm.f. |
| synonym | Carex tuberosa (Schult.) Blanco [Illegitimate] |
| synonym | Carex tuberosa (Schult.) Blanco, nom. illeg. |
| synonym | Eleocharis austrocaledonica Vieill. |
| synonym | Eleocharis dulcis var. tuberosa (Schult.) T.Koyama |
| synonym | Eleocharis equisetina J.Presl & C.Presl |
| synonym | Eleocharis esculenta Vieill. |
| synonym | Eleocharis indica (Lour.) Druce |
| synonym | Eleocharis plantaginea (Retz.) Roem. & Schult. |
| synonym | Eleocharis plantaginea var. stolonifera Boeckeler |
| synonym | Eleocharis plantagineiformis Tang & F.T.Wang |
| synonym | Eleocharis plantaginoidea W.Wight [Illegitimate] |
| synonym | Eleocharis plantaginoidea W.Wight, nom. superfl. |
| synonym | Eleocharis plantaginoides (Rottb.) Domin |
| synonym | Eleocharis tuberosa Schult. |
| synonym | Eleocharis tumida (Roxb.) Schult. |
| synonym | Hippuris indica Lour. |
| synonym | Limnochloa plantaginea (Retz.) Nees |
| synonym | Limnochloa tumida (Roxb.) Nees |
| synonym | Scirpus dubius Roxb. |
| synonym | Scirpus plantagineus Retz. |
| synonym | Scirpus plantaginoides Rottb. |
| synonym | Scirpus spiralis Willd. ex Kunth |
| synonym | Scirpus tuberosus Roxb. [Illegitimate] |
| synonym | Scirpus tuberosus Roxb., nom. illeg. |
| synonym | Scirpus tumidus Roxb. |
🗒 Common Names
| Créole Seychelles |
|
| French |
|
| Malgache |
|
📚 Overview
Description
Global description
Eleocharis dulcis is a vivacious plant that grows in marshes as dense clumps, from short, thick rhizomes. The many stems are green, leafless and cylindrical, transversely partitioned, 4 to 10 mm in diameter, 80 cm high. The leaves are reduced to sheaths without lamina. The inflorescence is made of a single dense spikelet extensively sub conical, located at the end of the stem, straw color, 2 to 5 cm long and 4 to 7 mm wide.
First leaves
New plants often grow from the nodes of rhizomes of the mother plants. They do not have developed leaf but a sort of greenish gray or whitish membranous sheath, 1 to 2 cm long, enveloping the young culm which appears as a peak, 5 to 10 cm. The leaf sheath expands to reach 3-6 cm for young plants that begin to emerge on the surface of the water. The culm is hollow and partitioned.
General habit
Dense clumps of leafless green cylindrical stems, reaching more than 80 cm high.
Underground system
The roots are fibrous from thick rhizomes, often stoloniferous.
Culm
The culm is cylindrical, hollow, robust, transversely partitioned, leafless, green, 4 to 10 mm in diameter reaching up to 80 cm high.
Leaf
The leaves are absent.
Inflorescence
The inflorescence is made of a single dense spikelet longly subconical, located at the end of the rod.
Flower
The single spikelet is dense, cylindrical oblong in continuity of top of the stem, straw color, 2 to 5 cm long and 4 to 7 mm wide. The glumes are loose-fitting, leathery, 4 to 8 mm long, straw-colored, and spirally arranged on the axis. They are obtuse oblong in shape, and has a margin underlined with a line purple brown edged with a narrow membranous collar. At the base of the alkene, there are 6 or 7 purple brown bristles equaling or exceeding the alkene. Style bi or trifid, 3 mm long, with broad based.
Fruit
The fruit is an achene quite widely obovoid or ellipsoid, 1 to 3 mm long, reaching the third or half of the glume, punctuated, of olive brown color.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
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No Data
📚 Nomenclature and Classification
No Data
📚 Natural History
Life Cycle
Life cycle
Vivacious
Reproduction
There is content in another language. Please click here to read it. (Français)
Eleocharis dulcis is a vivacious sedge that spreads by a creeping rhizome which, through the summer months, produces additional sucker plants.
dummy
| Attributions | dummy |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
Morphology
Growth form
Tuft plant with narrow leaves
Erected
Leaf type
Without
Latex
Without latex
Stem section
Round
Root type
Rhizome
Fibrous roots
Hollow or solid stem
Hollow stem
Fruit type
Grain of grasses
Achene
Achene type
Achene biconvex
Flower color
Yellow
Brown
Inflorescence type
Spike
Condensed spike
Stem pilosity
Glabrous
Life form
Geophytic plant
Sedge leaf
Look Alikes
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Distinctive characters of several species of Eleocharis
| Biology | Habit | Height | Underground system | Stem | Stem | Spickelet | Spickelet | Species |
| annual | small size, dense tuft | 10-25 cm | fasciculate roots from +- visible rhizome | not septate | flattened, ridged stem, 1 to 1.5 mm thick, glabrous | ovoïd | small terminal single spikelet, without bracts at the base. Its end is not pointed. It is approximately 5 mm long. It is pale or purplish. | E. complanata |
| vivacious | small size, small tuft | 1-10 cm | slender stolons with closely spaced stems | not septate | filiform, slender, solid stem, about 1 mm in diameter, erect or often arching | ovoïd + compressed | single spikelet 1.5 to 4.5 mm long and 1 to 1.5 mm wide, greenish or straw colored | E. minuta |
| vivacious | robust, dense tuft | -80 cm | thick rhizomes and stolons | septate transversely | cylindrical stem, hollow, 4 to 10 mm in diameter | oblong cylindrical | single spikelet dense, base less wide than the top of the stem, attenuated-acute, 25 to 50 mm long and 4 to 7 mm wide, straw-colored. | E. dulcis |
| vivacious | almost robust, dense tuft | 30-60 cm | thick rhizomes with closely spaced stems | not septate | cylindrical stem more or less compressed, 2 to 4 mm in diameter | cylindrical | single spikelet, base slightly wider than the top of the stem, attenuate-acute, 20 to 30 mm long and 3 to 5 mm wide, straw-colored | E. limosa |
| vivacious | dense tuft | 30-70 cm | short rhizomes and long stolons | septate transversely | triangular section stem with very sharp angles, with smooth faces 2.5 to 4 mm wide. | cylindrical | single terminal spikelet, pointed end, without bract at the base, 20 to 60 mm long, 3 to 6 mm in diameter, base slightly wider than the stem. | E. acutangula |
| vivacious | dense tuft | 40-90 cm | thick short rhizomes | not septate | robust stem, triangular section (rarely quadrangular), smooth surface of 4 to 7 mm in diameter. | cylindrical | single terminal spikelet, obtuse-ended, without bracts at the base, 20 to 50 mm long and 4 to 6 mm in diameter | E. mutata |
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Distinct characteristics of Eleocharis minuta, E. dulcis and E. limosa à Madagascar
| Characteristics | E. minuta | E. dulcis | E. limosa |
| General aspect | Perennial small plant, in small clumps | Perennial plant in dense clumps, robust | Perennial plant in dense clumps, quite robust |
| Underground system | slender stolons bearing close tufted stem | thick rhizomes and Stolons | thick rhizomes bearing tight stems |
| stem | Threadlike stalk, Hail, full, of about 1 mm in diameter, erect or often arched, 1 to 10 cm tall, sometimes reaching 15 to 20 cm | cylindrical stem, hollow and transversely partitioned, up to 80 cm high, 4 to 10 mm in diameter | cylindrical stem more or less compressed, undivided, 2 to 4 mm in diameter, 30 cm to over 60 cm high |
| Inflorescence | single ovoid spikelet + compressed to 1.5 to 4.5 mm in length and 1 to 1.5 mm wide, greenish or straw | Dense single spikelet, oblong cylindrical, with less broad base than the top of the stem, attenuated acute, 25 to 50 mm long and 4-7 mm wide, straw-colored. | single, cylindrical Spikelet, with the base slightly broader than the top of the stem, attenuated-acute, 20 to 30 mm long by 3-5 mm wide, of straw color |
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
Ecology
Thrives in water-inundated areas like ponds, flooded fields or paddies, swamps, marshes and in the mud of shallow lakes.
Comoros: Eleocharis dulcis is absent.
Madagascar: Eleocharis dulcis is a common species of low rice fields or flooded ground or wetlands in Madagascar.
Mauritius: The species is very rare, even absent on the island.
Reunion: Uncommon Species, it is encountered in flooded areas.
Seychelles: Species present in marshy areas.
Comoros: Eleocharis dulcis is absent.
Madagascar: Eleocharis dulcis is a common species of low rice fields or flooded ground or wetlands in Madagascar.
Mauritius: The species is very rare, even absent on the island.
Reunion: Uncommon Species, it is encountered in flooded areas.
Seychelles: Species present in marshy areas.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Habitat and Distribution
General Habitat
Habitat
Aquatic
Description
Geographical distibution
Madagascar
Worldwide distribution
Eleocharis dulcis is widely distributed throughout the Old World tropics but mainly occurs in China and Japan, but also distributed in tropical West Africa, Madagascar and southern Australia.
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| Attributions | dummy |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
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No Data
📚 Occurrence
No Data
📚 Demography and Conservation
Risk Statement
Local harmfulness
Benin: rare and scarce.
Burkina Faso: rare but abundant when present.
Comoros: Eleocharis dulcis is absent.
Ivory Coast: rare and scarce.
Madagascar: Eleocharis dulcis is a particularly abundant weed in low flooded rice fields with drainage problem. It usually forms a very dense stand, closed, difficult to remove. This is a troublesome weed that also infests ponds and irrigation canals.
Mali: rare but abundant when present.
Mauritius: This species is not present in crops.
Reunion: This species is not present in crops.
Senegal: rare but abundant when present.
Seychelles: This species is not present in crops.
Benin: rare and scarce.
Burkina Faso: rare but abundant when present.
Comoros: Eleocharis dulcis is absent.
Ivory Coast: rare and scarce.
Madagascar: Eleocharis dulcis is a particularly abundant weed in low flooded rice fields with drainage problem. It usually forms a very dense stand, closed, difficult to remove. This is a troublesome weed that also infests ponds and irrigation canals.
Mali: rare but abundant when present.
Mauritius: This species is not present in crops.
Reunion: This species is not present in crops.
Senegal: rare but abundant when present.
Seychelles: This species is not present in crops.
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
📚 Uses and Management
Uses
Food: The rhizomes of Eleocharis dulcis are cooked, forming a common ingredient in Chinese cuisine. They are used as stuffing, in soups, chop suey and in salads or served boiled or steamed as a vegetable dish, sometimes with a sauce of sugar, butter, and flour. The tubers are high in carbohydrate with some protein. However, it is their crisp texture and sweet taste which makes them sought-after. Chinese water chestnuts are also eaten raw. Also, the tubers, being high in starch, are used in the production of starch.
Other: The stem of the plant is used to make mats in Sumatra though the mats are not durable over long periods of time.
Other: The stem of the plant is used to make mats in Sumatra though the mats are not durable over long periods of time.
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| Attributions | dummy |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY_SA |
| References |
There is content in another language. Please click here to read it. (Français)
Management
There is content in another language. Please click here to read it. (Français)
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
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
- Grard, P., T. Le Bourgeois, J. Rodenburg, P. Marnotte, A. Carrara, R. Irakiza, D. Makokha, G. kyalo, K. Aloys, K. Iswaria, N. Nguyen and G. Tzelepoglou (2012). AFROweeds V.1.0: African weeds of rice. Cédérom. Montpellier, France & Cotonou, Bénin, Cirad-AfricaRice eds.
- Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James. 1997. World weeds: natural histories and distribution. John Wiley & Sons. 1129 pp;
- Merrill, Elmer D. 1925. An enumeration of Philippine flowering plants, vol. 1 [reprint]. Bureau of Printing, Manila. 463 pp;
- Smith, Albert C. 1979. Flora Vitiensis nova: a new flora of Fiji. National Tropical Botanical Garden, Lawai, Kauai, Hawaii. Volume 1. 494 pp
- Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp;
- Le Bourgeois, T., Carrara, A., Dodet, M., Dogley, W., Gaungoo, A., Grard, P., Ibrahim, Y., Jeuffrault, E., Lebreton, G., Poilecot, P., Prosperi, J., Randriamampianina, J.A., Andrianaivo, A.P., Théveny, F. 2008. Advent-OI : Principales adventices des îles du sud-ouest de l'Océan Indien.V.1.0. In Cirad [ed.]. Cirad, Montpellier, France. Cdrom.
Information Listing > References
- Grard, P., T. Le Bourgeois, J. Rodenburg, P. Marnotte, A. Carrara, R. Irakiza, D. Makokha, G. kyalo, K. Aloys, K. Iswaria, N. Nguyen and G. Tzelepoglou (2012). AFROweeds V.1.0: African weeds of rice. Cédérom. Montpellier, France & Cotonou, Bénin, Cirad-AfricaRice eds.
- Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James. 1997. World weeds: natural histories and distribution. John Wiley & Sons. 1129 pp;
- Merrill, Elmer D. 1925. An enumeration of Philippine flowering plants, vol. 1 [reprint]. Bureau of Printing, Manila. 463 pp;
- Smith, Albert C. 1979. Flora Vitiensis nova: a new flora of Fiji. National Tropical Botanical Garden, Lawai, Kauai, Hawaii. Volume 1. 494 pp
- Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp;
- Le Bourgeois, T., Carrara, A., Dodet, M., Dogley, W., Gaungoo, A., Grard, P., Ibrahim, Y., Jeuffrault, E., Lebreton, G., Poilecot, P., Prosperi, J., Randriamampianina, J.A., Andrianaivo, A.P., Théveny, F. 2008. Advent-OI : Principales adventices des îles du sud-ouest de l'Océan Indien.V.1.0. In Cirad [ed.]. Cirad, Montpellier, France. Cdrom.
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Eleocharis%2520dulcis
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 | Poales |
| Family | Cyperaceae |
| Genus | Eleocharis |
| Species | Eleocharis dulcis (Burm.f.) Trin. ex Hensch. |
📊 Temporal Distribution
📷 Related Observations
