Dioscorea alata (Purple yam; Greater yam; Raja Ala)

Dioscorea alata, also known as purple yam; greater yam; Raja Ala (රාජ අල) is a species of yam. The tubers are usually a vivid violet-purple to bright lavender in color, but some range in color from cream to plain white.

  • Common Name In Sri Lanka: Greater yam (රාජ අල)
  • Scientific Name: Dioscorea alata
  • Habitat: In tropical areas of Asia and Africa, yams occur at the edges or in the canopy gaps of rainforests and woodlands.
  • Average Height: 20-30 ft

Dioscorea alata is part of the catalog of ayurvedic medicinal plants of Sri Lanka.

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