hoptree

[hop-tree]

noun

any of several North American shrubs or small trees belonging to the genus Ptelea, of the citrus family, especially P. trifoliata, having trifoliate leaves and roundish, waferlike fruit.

Origin of hoptree

An Americanism dating back to 1855–60; hop² + tree

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Hoptree (Ptelea trifoliata) is another member of the family.
American Forest Trees
Henry H. Gibson