It is well known, don't worry.
Uhhhh, aren't most Utric. flowers purple?
Not U. longifolia
No pitchers
not sticky
not aquatic
not pitfall
not lobster pot
carnivorous
suction traps
purple flowers (no help there!)
Incorrect guesses:
Sarracenia leucophylla, drosera binata, Dionaea muscipula, Utricularia sandersonii, Brochinnia reducta, Genlisea sp., U. longifolia