Boston ivy, Parthenocissus tricuspidata, close-up detail of red leaves on the climbing plant.

Boston ivy, Parthenocissus tricuspidata, close-up detail of red leaves isolated in shallow focus on the climbing plant against green leaves.

Boston ivy, Parthenocissus tricuspidata, close-up detail of green leaves turning red in autumn on the climbing plant.

Boston ivy, Parthenocissus tricuspidata, close-up detail of a single fallen red leaf on grey stone in the autumn.