Thai basil is a perennial herb, that grows as a small, multi-branched shrub, reaching up to a foot in height. It has narrow, arrow-shaped leaves that are about half the size of common sweet basil leaves. Thai basil has purple-tinged stems, which offer a nice contrast to the bright green leaves. The leaves are aromatic and have a strong, spicy flavor with hints of licorice.
 
Nutritional Value

Thai basil has notably high levels of vitamins K and A, as well as significant amounts of vitamin C, beta-carotene, magnesium, calcium, iron, and potassium. Basil is known for its beneficial essential oil, which contains eugenol – a natural compound that has antibacterial, anti-inflammatory and antioxidant properties.