an Entity references as follows:
Pteroceltis tatarinowii a species of tree endemic to China and the only extant member of the genus Pteroceltis. Common names include blue sandalwood, wingceltis or qing tan (Chinese: 青檀; pinyin: Qīngtán). Trees grow to 20 m (66 ft) tall and are used for timber, the bark fiber to make Xuan paper, and oil is extracted from its seeds.