Aristolochia fimbriata

An interesting herbaceous perennial which scrambles across the ground or over other plants. It has rounded, heart-shaped green leaves heavily viened in silver. In early summer, it produces tubular pale green flowers with a brown throat and a swollen 'mouth' with a checkered brown pattern and a fringe of long hairs. These smell rather unpleasant to attract flies for pollination, but the resulting seed pods are large, pale brown balloons, which open out into lanterns as they ripen and dry