USTC Pharmacy Medicinal Garden

University of Science and Technology Chittagong (USTC)

USTC Pharmacy Medicinal Garden

চালতা (DILLENIA INDICA)

ORIGIN

Dillenia indica is native to South and Southeast Asia, especially Bangladesh, India, Nepal, Sri Lanka, Myanmar, Thailand, and southern China. It naturally grows in moist forests, riverbanks, and wetlands.

TAXONOMY

  • Kingdom: Plantae

  • Clade: Angiosperms → Eudicots

  • Order: Dilleniales

  • Family: Dilleniaceae

  • Genus: Dillenia

  • Species: Dillenia indica L.

EVOLUTION

Dillenia indica evolved as a moisture-loving forest tree, developing large, hard fruits that resist predation and support seed dispersal by large animals. Its thick leaves and robust structure help it survive in humid tropical environments.

DESCRIPTION

A medium-sized evergreen tree, growing 10–15 meters tall.

  • Bark: Grey-brown, rough

  • Leaves: Large, oblong, leathery, serrated margins

  • Flowers: Large, white, showy, fragrant

  • Fruit: Large, green, hard, apple-like with acidic pulp

The fruit is the most distinctive feature of the plant.

ECOLOGY

  • Thrives in humid tropical and subtropical climates

  • Prefers moist, fertile, alluvial soils

  • Pollinated mainly by insects

  • Fruits eaten by elephants, monkeys, and birds

  • Important for wetland and forest biodiversity

CULTIVATION

  • Propagation: Seeds

  • Climate: Warm, humid tropical

  • Soil: Moist, well-drained loamy soil

  • Water: Moderate to high

Often planted in home gardens and village groves.

TRADITIONAL USES

  • Fruit used in curries, chutneys, pickles, and souring agents

  • Leaves used as plates and food wrapping

  • Tree planted near homes for shade

  • Used in folk and Ayurvedic medicine

MEDICINAL USES

Traditional medicine uses include:

  • Fruit pulp for digestive disorders and constipation

  • Bark for diarrhea and fever

  • Leaves for wound healing and inflammation

  • Used as a cooling and detoxifying agent

RESEARCH

Scientific studies report:

  • Phytochemicals: Flavonoids, tannins, triterpenoids, phenolic acids

  • Pharmacological activities:

    • Antioxidant

    • Antidiabetic

    • Anti-inflammatory

    • Antimicrobial

    • Hepatoprotective

Research is mainly preclinical, supporting traditional claims.

BIOLOGY

  • Life form: Evergreen tree

  • Reproduction: Sexual reproduction via seeds

  • Flowering: Spring to summer

  • Growth rate: Moderate

TOXICITY

Dillenia indica is generally safe when used traditionally.

  • Excess consumption of raw fruit may cause acidity

  • No serious toxicity reported

  • Medicinal use should follow traditional dosage

CONCLUSION

Dillenia indica (Chalta / Elephant Apple) is an ecologically important and culturally valued tree, providing food, medicine, and environmental benefits. Traditional uses are increasingly supported by scientific research, highlighting its potential in nutrition, herbal medicine, and conservation-based agriculture.

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