Ivy-leaved Toadflax is a trailing plant that is usually found growing on walls, but can also be found on rocks and stony ground. The flowers are like those of a small snapdragon, with a spur at the back of the petals; usually they are pale lilac, although they can also be pink or white. The leaves are ivy-shaped, giving the plant its name. After flowering, the stalks of the fruit capsules bend away from the light and bring the fruit into contact with crevices in the wall.