Thanks for the replies the plant I'm trying to find would have to fit the requirements in my poison dart frog terrarium hence the reason for such small traps or cups.
Day time temperature is 24 c and night temperature drops to 20 c humidity is 90% constantly.
Lighting is Arcadia jungle dawn with amazing results but the only down fall is air flow which I have purposely restricted but is not stagnant .
This might restrict my choices even further .