tung tree

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several widely cultivated eastern Asian trees of the genus Vernicia (syn. Aleurites), especially V. fordii and V. montana, whose seeds yield a commercially valuable drying oil.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any of several East Asian trees, of the genus Aleurites, cultivated for their seeds which are a source of tung oil.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun Chinese tree bearing seeds that yield tung oil