Basil is not only a popular folk remedy for ailments like nausea and bug bites but also widely utilized in traditional Chinese medicine, Ayurvedic medicine and other holistic medicine systems
 
There are many different varieties of O. basilicum, including (1Trusted Source):
Sweet basil: The most widely grown, popular basil, renowned for its use in Italian dishes. Commonly sold dried in supermarkets. Has a licorice-clove flavor.
Bush or Greek basil: Has a strong aroma but mild flavor, so it can be substituted for sweet basil. Forms a compact bush with small leaves and grows well in a pot.
Thai basil: Has an anise-licorice flavor and is commonly used in Thai and Southeast Asian dishes.
Cinnamon basil: Native to Mexico. Has a cinnamon-like flavor and scent. Commonly served with legumes or spicy, stir-fried vegetables.
Lettuce basil: Features large, wrinkled, soft leaves with a licorice-like flavor. Works well in salads or tossed with tomatoes and olive oil.