This high-climbing native vine has variable but often heart-shaped leaf blades up to 6 inches long (B). It competes with other vines to drape over shrubs and trees (A). The mature vine, up to 4 inches thick, resembles a small tree trunk (E). The small greenish flowers are found in clusters (cymes) (C). The fruit is a round berry, which turns from orange-pink to turquoise-blue (D). The similar River-Bank Grape (Vitis riparia) flowers and climbs over the same host plants somewhat earlier in spring. It has purple grapes and its mature vines have a shaggy bark.