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Notes on Nutgrass

March 19, 2012

Nutgrass (Cyprus rotundus) is considered an invasive weed and even been called “the world’s worst weed.” It is especially common in southern India, where it is used in Ayurvedic Medicine.

Cyperus grows rapidly and can produce up to 40,000 kg/hectare of underground plant material.

Cyperus, has several bioactive chemical constituents with the main active components being sesquiterpenes. These components are aromatic molecules with antioxidant activity. Examples of sesquiterpenes are: α-cyperone, β-selinene, cyperene, cyperotundone, patchoulenone, sugeonol, kobusone, and isokobusone.
Cyperus also contains other terpenes, such as the commonly occurring plant component pinene (a monoterpene), and several derivatives of the sesquiterpenes, such as cyperol, isocyperol, and cyperone. Their main pharmacological actions seems be anti-inflammatory, preventing weight gain, antispasmodic and analgesic.

In traditional medicine Nutgrass has been used in several areas, amongst them:

  • Recommended for fevers and obesity.
  • Relieves spasms and pain, acting mainly on the digestive system and uterus.They are used internally in the treatment of digestive problems and menstrual complaints.
  • May also be used as a single herb remedy for obesity, digestive problems & fevers.


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