Referred to as Holy Basil in English and Tulsi in Hindi, the plant is indigenous to India, including the Himalayan foothills and is also widely present in the Middle East. Tulsi is also known as Manjari, Krishna Tulsi, Trittavu, Tulshi, and Tulsi.
Majorly there is a mention of 4 types of Tulsi in Ayurveda, namely:
Rama Tulsi or Shri Lakshmi Tulsi with Green Leaf
Shyama or Krishna Tulsi with Purple Leaf
Vana Tulsi with Wild Leaf
Kapoor Tulsi with heavy flowers