Tung tree

The Tung tree (Vernicia fordii) is a deciduous tree in the spurge family.
It is known by many names in its native China, 油桐 (lit. oil tung) being the formal name, while others (桐油樹、光桐、三年桐、百年桐、桐子樹) are common names.
The tung tree is valued for tung oil, which is derived from the seeds of the tree. It has been introduced to Argentina, Paraguay, and the United States for cultivation.

Tung oil, also called China wood oil or nut oil, has traditionally been used in lamps in China. In modern times, it is used as an ingredient in paint, varnish, and caulk. It is also used as a polish for wooden furniture.

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