Euphorbia Antiquorum: If You See This Tree, Don't Try To Kill It. The Reason Will Amaze You

Euphorbia antiquorum, known as antique spurge and "Euphorbia of the Ancients", is a species of succulent plant in the family Euphorbiaceae. It is widespread throughout peninsular India but wild origin obscure. 

Escaped or naturalized and widely cultivated in neighbouring regions, such as Burma, China, Bangladesh, India, Indonesia, Iran, Malaysia, Myanmar, Pakistan, Thailand, Philippines, Sri Lanka, Vietnam and world wide in many tropical zones.