BASIL Ocymum basilicum steam distil. herb France. Refreshing, uplifting, clarifies and concentrates the mind and clears the head. Nerve tonic and aids mental fatigue. Significant action on the mind and emotions; of value in states of nervousness, anxiety and depression. Action on respiratory tract. Gives a sweet and intense green top note to blends. The “holy basil” or tulsi of India is Ocymum sanctum.