A small tree native to swampy parts of the south-eastern United States, Planera aquatica (family Ulmaceae), resembling a small elm but having single-toothed leaves and wingless, warty fruits.
Origin
Early 19th century. From the name of Johann Jakob Planer, German botanist + tree.
Definition of planer tree in US English:
planer tree
nounˈpleɪnə triː
A small tree native to swampy parts of the south-eastern United States, Planera aquatica (family Ulmaceae), resembling a small elm but having single-toothed leaves and wingless, warty fruits.
Origin
Early 19th century. From the name of Johann Jakob Planer, German botanist + tree.