Rafflesias are remarkable for their enormous flowers, which are among the largest in the world, achieving diameters up to 1 meter. These parasitic plants lack visible leaves, stems, or roots and live inside vines, emerging only to flower. Their flowers are notable for their striking appearance and unpleasant odor, which attracts carrion flies for pollination. This unique adaptation allows rafflesias to thrive in dense forest environments by relying on host plants for nutrients.