Pink Turtlehead is the only native Chelone sp. (Turtlehead) in Illinois with pink to deep rosy pink flowers. It is an attractive plant with turtlehead-shaped flowers. The other native Turtlehead within the state is Chelone glabra (White Turtlehead), which has white (or slightly pink) flowers and shorter petioles (less than ¼"). Sometimes Chelone lyonii (Lyon's Turtlehead) is grown in flower gardens, although it has not naturalized within the state. This species is native to the Appalachian mountains in the SE. Lyon's Turtlehead has flowers that are about the same color as those of Pink Turtlehead, but it has wider leaf blades and longer petioles (½–1½" long). Other common names that refer to Chelone obliqua include Rose Turtlehead, Purple Turtlehead, and Red Turtlehead. Plants that are offered for sale as 'Chelone obliqua' by mass-market nurseries may be hybrids of undetermined parentage, rather than the open-pollinated species.