Tabernaemontana

Tabernaemontana is a genus of flowering plants in the family Apocynaceae. It has a pan-tropical distribution, found in Asia, Africa, Australia, North America, South America, and islands of the Indian and Pacific Oceans. These plants are evergreen shrubs and small trees growing to 1–15 m tall. The leaves are arranged in opposite pairs, 3–25 cm long, with milky sap; hence it is one of the diverse plant genera commonly called "milkwood". The flowers are fragrant, white, 1–5 cm in diameter. The cultivar T. divaricata cv. 'Plena', with doubled-petaled flowers, is a popular houseplant. Some members of the genus Tabernaemontana are used as additives to some versions of the psychedelic drink ayahuasca; the genus is known to contain ibogaine (e.g. in bëcchëte, T. undulata), conolidine (present in minor concentration in T. divaricata) and voacangine (T. alba, T. arborea, T. africana). Because of presence of coronaridine and voacangine in Mexican Tabernaemontana species, those plant could be use......read more on Wikipedia.