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.[1] 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.[2]

Gymnanthemum extensum
Flowers
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Gymnanthemum
Species:
G. extensum
Binomial name
Gymnanthemum extensum
Synonyms
  • Vernonia extensa (Wall.) Wall. ex DC.[1]
  • Cacalia extensa Kuntze
  • Conyza extensa Wall.

Distribution
Leaf of a bitterleaf shrub

Southern China (Guizhou, Yunnan), the Himalayas (Sikkim, Nepal, Bhutan) and the Shan Hills (Myanmar, Thailand).[2] It has been cultivated in Thailand as a garden tree for the medicinal properties of its leaves and the fragrance of its flowers.[3]

References
  1. "Gymnanthemum extensum". The Plant List. Retrieved 7 February 2018.
  2. "Vernonia extensa". Flora of China. Retrieved 6 February 2018.
  3. "Nan Chao Woei fresh leaves have properties". Thairath. Retrieved 6 February 2018.
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