cucumber tree

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

• noun Any of certain magnolias, especially Magnolia acuminata, a deciduous tree of eastern North America, having greenish-yellow flowers and a cucumber-shaped aggregate fruit.

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

• noun American deciduous magnolia having large leaves and fruit like a small cucumber