- Source: Gymnanthemum extensum
Gymnanthemum extensum, also known as bitterleaf tree, Chinese: 展枝斑鸠菊 zhan zhi ban jiu ju, Thai: หนานเฉาเหว่ย nan chao woei, is a species of flowering shrub of the family Asteraceae. It is an up to 8 m shrub or small tree found naturally growing at 1,200 m (3,900 ft) to 2,100 m (6,900 ft) above sea level in open forests or thickets in slopes, valleys and by the roadside.
Distribution
Southern China (Guizhou, Yunnan), the Himalayas (Sikkim, Nepal, Bhutan) and the Shan Hills (Myanmar, Thailand). It has been cultivated in Thailand as a garden tree for the medicinal properties of its leaves and the fragrance of its flowers.
References
External links
Media related to Gymnanthemum extensum at Wikimedia Commons
Thai Ministry of Agriculture plant information Archived 10 February 2018 at the Wayback Machine
Chemical & Pharmaceutical Bulletin 40(2):553-555 · January 1992 - Structures of two new bitter principles isolated from a Thai Medicinal Plant, Vernonia Extensa D.C.