Ocimum tenuiflorum, Holy Basil (also tulsi, tulasī), is an aromatic plant in the family Lamiaceae which is native throughout the Old World tropics and widespread as a cultivated plant and an escaped weed. Recent studies suggest tulsi may be a COX-2 inhibitor, like many modern painkillers, due to its high concentration of eugenol (1-hydroxy-2-methoxy-4-allylbenzene). One small study showed it to reduce blood glucose levels in type 2 diabetics when combined with hypoglycemic drugs.
Ocimum tenuiflorum syn. sanctum ~ holy basil or tulsi and tulasi in South Asia, it is an important sacred plant in Hinduism. The essential oil from some populations of holy basil contains high levels of eugenol. In traditional Thai medicine, the leaf or whole plant is used to alleviate nausea, vomiting, diarrhoea and flatulence, antibacterial, Fresh flowers are used to treat coughs and colds. Native to tropical and subtropical Asia.
TULSI - the incomparable one; has innumerable health benefits; from an antidote for fevers to being a decongestant to building general immunity. Tulsi leaves decoction prepared along with powdered cardamom is helpful in bringing down fever. Sore throat can be prevented by gargling with tulsi leaves water. Tulsi tea is good for various respiratory problems.