Darbha Pullu

  • English Name : Cogon Grass, Japanese Blood Grass
  • Botanical Name : Imperata cylindrica
  • Family Name :
  • Sanskrit Name : Darbha
  • Malayalam Name : Darbha Pullu (ദർഭപ്പുല്ല്)
  • Planet : Kethu
  • Part Used : Roots, Rhizomes (stem), Leaves
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Overview

  • Imperata cylindrica, commonly known as Cogon Grass, is a perennial grass species that can grow up to 2 meters in height.
  • The plant has long, linear leaves, measuring 180 cm in length and 2.5 cm in width, emerging from the stem bases.
  • The underground stem, known as a rhizome, is whitish and produces many erect stems, contributing to the plant’s robust growth.
  • The plume-like inflorescence is a branched panicle, white and hairy, measuring up to 30 cm in length and 2 cm in width.
  • The inflorescence comprises tiny, reduced flowers (florets) arranged in pairs to form spikelets.
  • Each spikelet includes a sterile and bisexual floret with two orange stamens and one purple stigma.
  • The spikelets are typically paired, with one spikelet about twice as long as the other (0.8 mm and 1.8 mm long).
  • Imperata cylindrica is a significant weed in cultivated lands due to its aggressive growth and the difficulty of uprooting its large, underground rhizomes.

Habitat

  • Imperata cylindrica is native to Southeast Asia but has spread to tropical and subtropical regions worldwide, including Africa, the Americas, and Australia.
  • It is commonly found in disturbed soils, particularly sandy and loamy soils, and can tolerate poor, acidic, and well-drained conditions.
  • Imperata cylindrica thrives in areas with full sunlight and can survive in both dry and moist environments.

Nutritional Prowess

  • While Imperata cylindrica is not used as food, its roots and rhizomes contain bioactive compounds with medicinal benefits.
  • These compounds include triterpenoids, phenolic acids, and essential oils.
  • The roots are particularly valued for their diuretic properties.
  • The plant is known for its potential in managing fever, inflammation, and hypertension.
  • The saponins and flavonoids present in the plant contribute to its antioxidant activity, helping reduce oxidative stress.
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Dermatological Perks

  • The rhizomes of Imperata cylindrica are used in traditional medicine for their cooling and soothing properties.
  • They are often applied topically in poultices to treat burns, wounds, and irritations.
  • The plant’s extracts are believed to help reduce inflammation and promote the healing of cuts and insect bites.
  • Its antimicrobial properties help prevent infections in wounds and other skin conditions.
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