Boston ivy growing on a wall.
Boston ivy definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a climbing vine (Parthenocissus tricuspidata) of the grape family, native to Japan and China, having shield-shaped leaves and purple berries: often grown to cover walls
Boston ivy definition by American Heritage Dictionary
A high-climbing woody vine (Parthenocissus tricuspidata) native to eastern Asia and having three-lobed deciduous leaves. It frequently covers the outer walls of buildings and has attractive fall coloration. Also called Japanese ivy.