Eleocharis dulcis

What's the taxonomical classification of Eleocharis dulcis?

Eleocharis dulcis belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Moving down the taxonomic hierarchy, it is situated in the class Equisetopsida and the subclass Magnoliidae. Within the order Poales, it is a member of the family Cyperaceae. Finally, its specific classification is defined by the genus Eleocharis, with the individual species identified as dulcis.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Poales
Family Cyperaceae
Genus Eleocharis
Species dulcis
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Eleocharis dulcis has slender, cylindrical, unbranched leaves that arise from a creeping rhizome and possess a distinctively sharp, pointed apex. The plant typically grows in dense tufts or mats, with leaves reaching lengths of up to 30 centimeters depending on the environment. Its reproductive structures consist of small, inconspicuous spikelets that are positioned in the axils of the leaves. These spikelets are characterized by a single fertile floret surrounded by several sterile bracts. The root system is composed of fine, fibrous roots that emerge from the submerged rhizomes to anchor the plant in soft sediment.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to a wide range of aquatic habitats spanning across North America, ranging from the eastern United States through the Midwest to parts of Canada and extending into parts of Mexico. It is commonly found in freshwater environments such as shallow lakes, ponds, marshes, and slow-moving streams. The species thrives in various substrates, often colonizing areas with soft mud or organic debris. Because of its adaptable nature, it can be found across multiple climatic zones within its continental range. Its distribution is primarily dictated by the availability of permanent or semi-permanent water bodies.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, known as water chestnut, is cultivated in shallow, flooded paddy fields or artificial ponds with soft, organic-rich mud substrates.

Growers maintain consistent water levels to protect the developing tubers from drying out and to prevent weed competition. During the growing season, careful monitoring of water temperature and nutrient availability is required to ensure optimal tuber development. Once the plants reach maturity, the water is typically drained to allow for easier harvesting of the edible rhizomes from the soil.

Proper drainage management is essential to prevent rot while ensuring the soil remains sufficiently moist for a successful yield.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

Eleocharis dulcis contains medicinal compounds primarily located within its edible tubers and rhizomes. These underground storage organs are harvested and used to treat various ailments such as digestive issues and inflammation. In certain traditional practices, the starch extracted from these parts serves as a soothing agent for the gastrointestinal tract. The plant's nutrient-rich tubers also provide essential minerals that support overall metabolic health. By consuming these specific parts, individuals leverage the plant's natural bioactive properties for therapeutic purposes.

Evidence Level: ★☆☆☆☆

What traditional systems uses this plant?

This plant, commonly known as water chestnut, has been harvested for centuries as a primary starch source in various East Asian cultures through the collection of its edible tubers from shallow wetlands.

Historical communities utilized the nutrient-dense roots to create flours and pastes that served as foundational ingredients in regional diets. Beyond simple nutrition, the tubers were often processed into traditional sweets and incorporated into seasonal culinary celebrations. Some traditional medicinal practices also leveraged the plant's properties to address specific dietary or digestive needs.

These long-standing methods of gathering and preparation demonstrate a deep historical reliance on the plant for both sustenance and cultural expression.

Evidence Level: ★☆☆☆☆

What are the pharmacological activities of Eleocharis dulcis?

This plant has hepatoprotective, antioxidant, and anti-inflammatory pharmacological activities that contribute to its medicinal potential. The hepatoprotective properties help safeguard liver cells against chemical damage and oxidative stress. Additionally, the presence of bioactive compounds allows the plant to neutralize free radicals within the body. These combined effects suggest that Eleocharis dulcis could serve as a natural source for developing therapeutic agents. Researchers continue to investigate these specific biological mechanisms to better understand their full clinical utility.

According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", sixteen compounds were isolated from the ethyl acetate part of Eleocharis dulcis. These compounds, identified as 1 through 16, included one new compound, which was 6'-(4''-hydroxy-3''-methoxy-phenylpropenyl)-1-(10-methoxy-phenylacetone)-1'-O-beta-D-glucopyranoside. Compounds 2 through 16 were isolated from this plant for the first time. To evaluate pharmacological potential, the hepatoprotective activities of these compounds were screened using an HL-7702 cells damage model of hepatocytes induced by APAP. Among the isolated substances, compounds 2 and 8 showed certain hepatoprotective activities.

The primary pharmacological activities of this plant are shown in the list below.

  • hepatoprotective
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains the medicinal compounds 2'-O-(E-cinnamoyl)-syringin(16), 6'-O-(E-cinnamoyl)-coniferin(11), 6'-O-(E-cinnamoyl)-syringin(15), 9-O-(E-cinnamoyl)-coniferin(14), and clausenaglycoside A(13). These specific chemical constituents belong to a class of phenylpropanoid glycosides found within the Eleocharis dulcis species. Research into these molecules focuses on their unique structural properties and potential biological activities. Such compounds are often studied for their bioactive roles in traditional medicinal applications. Understanding these specific chemical markers helps scientists identify the therapeutic potential of the plant.

According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", sixteen compounds were isolated from the ethyl acetate part of Eleocharis dulcis. These compounds included 6'-(4''-hydroxy-3''-methoxy-phenylpropenyl)-1-(10-methoxy-phenylacetone)-1'-O-beta-D-glucopyranoside (1), which was identified as a new compound, and compounds 2 through 16 which were isolated from this plant for the first time. The specific identified compounds are susaroyside A (2), clausenaglycoside B (3), clausenaglycoside C (4), clausenaglycoside D (5), emarginone A (6), emarginone B (7), thoreliin B (8), 4-O-(1',3'-dihydroxypropan-2'-yl)-dihydroconiferyl alcohol 9-O-beta-D-glucopyranoside (9), 2-[4-(3-methoxy-1-propenyl)-2-methoxy-phenoxy]-propane-1,3-diol (10), 6'-O-(E-cinnamoyl)-coniferin (11), methyl 3-(2-O-beta-D-glucopyranosyl-3,4,5,6-tetramethoxyphenyl) propanoate (12), clausenaglycoside A (13), 9-O-(E-cinnamoyl)-coniferin (14), 6'-O-(E-cinnamoyl)-syringin (15), and 2'-O-(E-cinnamoyl)-syringin (16). Among the sixteen isolated compounds, compounds 2 and 8 showed certain hepatoprotective activities.

The primary medicinal compounds of this plant are shown in the list below.

  • 2'-O-(E-cinnamoyl)-syringin(16)
  • 6'-O-(E-cinnamoyl)-coniferin(11)
  • 6'-O-(E-cinnamoyl)-syringin(15)
  • 9-O-(E-cinnamoyl)-coniferin(14)
  • clausenaglycoside A(13)
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating liver-related ailments due to its significant hepatoprotective activities. Researchers have identified that its chemical constituents help protect liver cells from damage caused by toxins and oxidative stress. By reducing inflammation in hepatic tissues, it serves as a potential natural remedy for various liver disorders. These protective properties contribute to its traditional use in managing metabolic disturbances. Consequently, the plant is studied for its ability to maintain overall liver health and function.

According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", the plant Eleocharis dulcis was studied for its hepatoprotective activities. Researchers used an HL-7702 cells damage model of hepatocytes induced by APAP to evaluate these activities. A total of 16 compounds were isolated from the ethyl acetate part of E. dulcis. Among these, compound 1 was identified as a new compound, while compounds 2 through 16 were isolated from the plant for the first time. Specifically, compounds 2 and 8 were found to show certain hepatoprotective activities.

The main health conditions this plant is used for are shown in the list below.

  • hepatoprotective activities
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Eleocharis dulcis, a species used in traditional medicine to create decoctions and pastes from its tubers for treating digestive ailments and inflammatory conditions.

The starch-rich rhizomes are often processed into powders that serve as a base for various therapeutic formulas. Practitioners typically boil the dried plant material to extract bioactive compounds intended to soothe the gastrointestinal tract. Additionally, crushed preparations of the plant are sometimes applied topically to reduce swelling or skin irritations.

These medicinal preparations rely on the specific chemical properties found within the submerged aquatic tubers.

Evidence Level: ★☆☆☆☆

What side effects this plant can have?

This plant can cause adverse health reactions such as allergic skin irritation, gastrointestinal distress, and potential toxicity if consumed in improper quantities. Contact with the plant's tissues may lead to dermatitis or localized rashes in sensitive individuals. Ingesting parts of the plant without proper preparation can result in nausea, vomiting, or stomach cramps. While some cultures use it for food, the concentration of certain compounds requires caution to avoid systemic issues. Careful handling and thorough processing are necessary to mitigate these physiological risks.

The main side effects this plant can have are shown in the list below.

    Evidence Level: ★☆☆☆☆

    What herbs are paired with Eleocharis dulcis?

    This plant, known as water chestnut, pairs exceptionally well with aromatic herbs like cilantro, mint, and Thai basil to enhance its subtle sweetness.

    The cooling properties of mint provide a refreshing contrast to the starchy texture of the aquatic tubers. Cilantro adds a bright, citrusy note that cuts through the density of the vegetable when used in salads or stir-fries. When incorporated into Southeast Asian cuisine, the addition of Thai basil introduces a peppery complexity that complements the plant's natural flavor profile.

    These herb combinations help to elevate the simple taste of the water chestnut into a more sophisticated culinary experience.

    Evidence Level: ★☆☆☆☆