Purple Pitcher Plant Flowers

I saw two forms of red-flowered Pitcher Plants in the Green Swamp, and I feel certain that this one is Purple Pitcher Plant (Sarracenia purpurea). Unlike the other red-flowered form I saw, in this one the petals (beneath the sepals) are dark colored and pinched near the top.

 

Location: The Green Swamp near Wilmington, North Carolina

Done