the classification of all flowering plants is currently in a state of flux. in the cronquist system, the droseraceae and nepenthaceae were placed in the order nepenthales, based on the radial symmetry of their flowers and their possession of insect traps. the sarraceniaceae was placed either in the nepenthales, or in its own order, the sarraceniales. the byblidaceae, cephalotaceae, and roridulaceae were placed in the saxifragales; and the lentibulariaceae in the scrophulariales (now subsumed into the lamiales).