Aristolochia
Dutchman's pipes, a diverse group of herbacious plants and lianas (woody vines), are so-named because their flowers often resemble smoking pipes. These plants have evolved a curious way of getting pollinators to spread their pollen; strong flower scents attract flying insects, especially flies, which become trapped by sticky, pollen-covered hairs within the flower. These hairs quickly whither away, releasing the now pollen-covered insect to go visit another aristolochia .