There are several varieties of yew (comprehensive understanding of the diversity and classification of yew)

Yew (Taxus chinensis) is an ancient and mysterious tree species, known as a "living fossil". It is an evergreen tree that grows in subtropical and temperate regions of China. Yew is famous for its unique morphology and medicinal value, and is widely used in traditional Chinese medicine and garden landscaping.

Classification of yew

Yew belongs to the Taxaceae family, and there are currently 9 known species. These varieties differ in morphology, ecological habits and medicinal value. The various varieties of yew will be introduced in detail below.

1. Coastal yew (Taxus chinensis var. mairei)

Coastal yew is a variety of yew, mainly distributed in the southeastern coastal areas of China. It has high medicinal value and is widely used in traditional Chinese medicine preparations. The leaves of coastal yew are dark green and oval, and the fruits are red.

2. Taxus chinensis var. yunnanensis

Yunnan yew is a yew species growing in Yunnan, China. Its leaves are large, dark green, and its fruits are red. The bark of Yunnan yew is rich in yewine, which is an important raw material for anti-cancer drugs.

3. Tibetan yew (Taxus chinensis var. mairei)

Tibetan yew is a yew species growing in Tibet, China. It grows in high altitude areas and has strong adaptability. The leaves of Tibetan yew are small, dark green, and the fruits are red. It has high ornamental value and is often used in garden landscapes.

4. Dianchi yew (Taxus chinensis var. mairei)

Dianchi yew is a yew species that grows in the Dianchi area of ​​Yunnan, China. Its leaves are small, dark green, and its fruits are red. Dianchi yew is a unique plant in the Dianchi area and has high ecological protection value.

5. Landrace yew (Taxus cuspidata var. nana)

Landrace yew grows in China A yew species from the Northeast. It is adapted to cold climate conditions and grows slowly. Landrace yew has smaller, dark green leaves and red fruits. It is widely used in garden landscaping and bonsai art.

6. Japanese yew (Taxus cuspidata)

Japanese yew is a yew species growing in Japan. It has some morphological differences from the Chinese yew. The leaves are smaller, dark green, and the fruits are red.color. Japanese yew has high medicinal value and is widely used in traditional Chinese medicine preparations.

7. American yew (Taxus brevifolia)

American yew is a yew species that grows in the northwest region of the United States. Its leaves are small, dark green, and its fruits are red. American yew has high medicinal value and is widely used in traditional Chinese medicine preparations.

8. Malaysian yew (Taxus sumatrana)

Malaysian yew is a yew species growing in Malaysia. Its leaves are small, dark green, and its fruits are red. Malaysian yew is widely used in traditional Chinese medicine preparations and has high medicinal value.

9. Nepal yew (Taxus wallichiana)

Nepal yew is a yew species that grows in Nepal and the Himalayas. Its leaves are large, dark green, and its fruits are red. Nepalese yew has high medicinal value and is widely used in traditional Chinese medicine preparations.

Conclusion

Yew is a tree species with rich diversity, and there are currently 9 known species. Each variety differs in morphology, ecological habits and medicinal value. A comprehensive understanding of yew can help better utilize and protect this valuable natural resource.