In Hindu vedas , Tulsi (matchless) is known as Vaishnavi (belonging to Vishnu), Vishnu Vallabha (beloved of Vishnu), Haripriya (beloved of Vishnu), Vishnu Tulsi. The Tulsi with green leaves is called Shri-Tulsi (fortunate Tulsi); Shri is also a synonym for Lakshmi, Vishnu's principal consort. This variety is also known as Rama-Tulsi (bright Tulsi); Rama is also one of the principal avatars of Vishnu. The Tulsi with dark green or purple leaves and purple stem is called Shyama-Tulsi (dark Tulsi) or Krishna-Tulsi (dark Tulsi); Krishna is also a prominent avatar of Vishnu. This variety is considered especially sacred to Krishna, as its purple color is similar to Krishna's dark complexion.