The yellow Barleria Barleria prionitis is a wild flower which grows in vacant plots.It is an important plant used by the practitioners of Ayurveda, the Indian system of medicine. It is know as Vajradanti in Sanskrit. The name means "Diamond Teeth". Yes, the plant is used for relieving tooth ache. It is claimed that if you brush your teeth with a paste made of the leaves and roots of this plant daily, your teeth will be as hard as diamonds. The leaves of the plant have germicidal properties. They are used in beauty preparations and shampoos. The plant is used for relieving fever and joint pain.