Pitcher-plant, Sarracenia purpurea.

The pitcher-plant (Sarracenia purpurea) is named for the circle of urn-shaped leaves surrounding the central flower stalk. It is carnivourous, obtaining nutrients from insects that drown in the 'pitchers'. The insects are attracted to the red-veined leaves, and pursue a nectar-scented trail downward into a pool of rainwater and digestive enzymes. As corpses accumulate, bacterial action assists the plant in breaking down its food, and the odour of rotting meat becomes noticeable. It is found in bogs and wet bottomlands throughout eastern North America.