Ocimum tenuiflorum, also known as Ocimum sanctum, holy basil, or tulasī, is an aromatic plant in the family Lamiaceae which is native to the Indian Subcontinent and widespread as a cultivated plant throughout the Southeast Asian tropics.[1][2] It is an erect, many branched subshrub, 30–60 cm tall with hairy stems and simple opposite green or purple leaves that are strongly scented. Leaves have petioles and are ovate, up to 5 cm long, usually slightly toothed. The flowers are purplish in elongate racemes in close whorls.[2] The two main morphotypes cultivated in India and Nepal are green-leaved (Sri or Lakshmi tulasi) and purple-leaved (Krishna tulasi).[3] (See Tulsi in Hinduism.)