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Cyphostemma annamalaii

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May 08, 2026

Prelims: Current events of national and international importance | Biodiversity

Why in News?

Researchers from Annamalai University have discovered a new plant species in the grape family in the southern Eastern Ghats, Tamil Nadu (Villupuram district, Sanjeevi Hill).

  • Scientific NameCyphostemma annamalaii. (no common name)
  • KingdomPlantae.
  • Family – Vitaceae Juss (grape family, 1,000 species, 20 genera).
  • GenusCyphostemma (second largest genus in Vitaceae around 250 species).
  • NomenclatureNamed after Rajah Sir Annamalai Chettiyar.
  • Habitat Tropical dry forest; Open scrubby habitat; climber using surrounding vegetation for support.
  • RangeEndemic to southern Eastern Ghats; restricted distribution.

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Morphological Features

 

Cyphostemma annamalaii

Cyphostemma setosum (Allied Species)

Leaves

Starts with three leaves and ends with three.

 

Starts with a single leaf and ends with three leaves.

Flowers

Petals white or yellow.

 

Petals are greenish-white on the top half, becoming reddish-brown.

Fruit

Round, yellow fruit

 

Ovate-shaped (egg-shaped) fruit that is red.

Root

Tuberous root system.

 

(Not specifically detailed in the text, but noted for medicinal properties).

Distinctiveness

Morphology clearly separates it from allied species; confirmed by expert review in Phytotaxa.

Known for its use in treating stomach ulcers and its antidiabetic and antimicrobial properties.

Reference

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