Sweet basil is a culinary herb of the family Lamiaceae (mints). Basil is native to tropical regions from central Africa to Southeast Asia. It is a tender plant, and is used in cuisines worldwide. Depending on the species and cultivar, the leaves may taste somewhat like anise, with a strong, pungent, often sweet smell. Sweet basil (Ocimum basilicum L.) is medicinal plant. Common name of Sweet basil in Assamese is Ram tulasi or Ram tulosi.