Parthenocissus tricuspidata is a flowering plant in the grape family native to eastern Asia in Korea, Japan, and northern and eastern China. Although unrelated to true ivy, it is commonly known as Boston ivy, grape ivy, and Japanese ivy. Ivy League universities get their nickname from the Boston ivy that climbs their storied walls. Boston ivy vines not only lend greenery through the summer, but they also provide fall colour. In spring, the new leaves of Boston ivy are reddish. The leaves typically turn green in summer, before reverting to bright red colour in fall. The plants produce inconspicuous flowers, yielding to clusters of dark blue berries that feed birds. The vine length of mature plants may reach 50 feet or more.