Quercus variabilis
| Chinese cork oak | |
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| File:Chinese cork oak.jpg | |
| Chinese cork oak planted at Tortworth Court, England | |
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Q. variabilis
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| Binomial name | |
| Quercus variabilis Blume 1850
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Quercus variabilis (Chinese cork oak) is a species of oak in the section Quercus sect. Cerris, native to a wide area of eastern Asia in southern, central, and eastern China, Taiwan, Japan, and Korea.[2]
Description
Quercus variabilis is a medium-sized to large deciduous tree growing to 25–30 m tall with a rather open crown, and thick corky bark with deep fissures and marked by sinuous ridges. The leaves are simple, acuminate, variable in size, 8–20 cm long and 2–8 cm broad, with a serrated margin with each vein ending in a distinctive fine hair-like tooth; they are green above and silvery below with dense short pubescence.[2]
The flowers are wind-pollinated catkins produced in mid spring, maturing about 18 months after pollination; the fruit is a globose acorn, 1.5–2 cm diameter, two-thirds enclosed in the acorn cup, which is densely covered in soft 4–8 mm long 'mossy' bristles.[2][3]
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Chinese cork oak foliage and flower.jpg
Foliage and flowers
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Chinese cork oak bark.jpg
Trunk and bark of Chinese cork oak
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Quercus variabilis JPG1a.JPG
Chinese cork oak planted at Meise, Belgium
Distribution and habitat
Evergreen and deciduous forests; below 3000 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang, Japan and Korea.[2]
Uses
It is cultivated in China to a small extent for cork production, though its yield is lower than that of the related cork oak. It is also occasionally grown as an ornamental tree. For pharmaceutical grade production of Ganoderma lucidum, known in China as ‘the mushroom of immortality,’ the dead wood logs of Q. variabilis are used.[4]
References
- ↑ The Plant List, Quercus variabilis Blume
- ↑ 2.0 2.1 2.2 2.3 Flora of China, Quercus variabilis Blume, 1850. 栓皮栎 shuan pi li
- ↑ Blume, Carl Ludwig von 1850. Museum Botanicum 1(19): 297 in Latin
- ↑ Shilin Chen, Jiang Xu, Chang Liu, Yingjie Zhu, David R. Nelson, Shiguo Zhou, Chunfang Li, Lizhi Wang, Xu Guo, Yongzhen Sun, Hongmei Luo, Ying Li, Jingyuan Song, Bernard Henrissat, Anthony Levasseur, Jun Qian, Jianqin Li, Xiang Luo, Linchun Shi, Liu He, et al. 2012. Genome sequence of the model medicinal mushroom Ganoderma lucidum. Nature Communications 3,Article number: 913, doi:10.1038/ncomms1923
External links
- line drawing, Flora of China Illustrations vol. 4, fig. 359, 2
- line drawing, Manual of Vascular Plants of the Lower Yangtze Valley China Illustration fig. 57
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