buckwheat tree buckw·heatt·ree uncommon noun 1. tree of low-lying coastal areas of southeastern United States having glossy leaves and racemes of fragrant white flowers Synonymstitibuckwheat treeCliftonia monophylla Related words Broader terms angiospermous tree Parts Cliftonia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
