In general, Heliconias are evergreen in the Tropics and warm Subtropics, like zone 10. Further north, upper zone 9 and lower zone 8, they may be frozen back to the ground each Winter but survive to resprout the next Spring.
The most well known species of carnivorous plants. Traps have a limited number of false alarms. Don't stimulate them too often. Artificially springing the trap drains the plant's energy.
The trap of the Venus Flytrap is one of Nature's most amazing marvels. The outer edges of the two clamshell-like halves are lined with nectar glands and stout bristles.