Sandalwood (santalum album) is a small evergreen tree that can grow up to 15 metres high. This hemiparasitic tree (feeding off the roots of other plants) is found widely in the Periyar Tiger Reserve, although is considered threatened in many parts of the world.

Also known as The Royal Tree due to its high commercial value, sandalwood is used as an essential oil in aroma therapy,perfumes, soaps, incense, detergents, pharmaceuticals, cosmetics and other industries.