''Quercus yingjiangensis'' is an uncommon Asian species of trees in the

beech family The Fagaceae are a family of flowering plants that includes beeches, chestnuts and oaks, and comprises eight genera with about 927 species. Fagaceae in temperate regions are mostly deciduous, whereas in the tropics, many species occur as evergr ...

. It has been found only in southwestern China in the Province of

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

.Flora of China, ''Cyclobalanopsis yingjiangensis'' Y. C. Hsu & Q. Z. Dong in Y. C. Hsu & B. S. Sun, 1983. 盈江青冈 ying jiang qing gang
/ref> ''Quercus yingjiangensis'' is a tree up to 20 meters tall. Twigs are dark purple. Leaves can be as much as 12 cm long.

References

yingjiangensis Endemic flora of Yunnan Trees of China Plants described in 1983 {{Quercus-stub