Brunfelsia mutabilis

About

Brunfelsia uniflora, the manac, is a species of flowering plant in the family Solanaceae. It is native to Monos island of Trinidad and Tobago, Venezuela, the Venezuelan Antilles, Guyana, Brazil, and northwest Argentina, and has been introduced to eastern Tropical Africa, Réunion, Mauritius, India, and Assam. A poisonous evergreen shrub typically 0.5 to 3 m tall, it is commonly cultivated as an ornamental, and as an ingredient in ayahuasca and other potions, usually under its synonym Brunfelsia hopeana.

Summary from Wikipedia