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Gymnanthemum extensum is a shrub or small tree in the daisy family, reaching up to about 8 m in the wild. It is known as bitterleaf tree and is grown in Thailand as a garden plant for its medicinal leaves and fragrant flowers. It is a rarely cultivated species, so practical care advice is limited.
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.
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.
Text excerpted from the Wikipedia article Gymnanthemum extensum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
