Corylus avellana, the common hazel, is a species of hazel native to Europe and western Asia, from the British Isles south to Iberia, Greece, Turkey and Cyprus, north to central Scandinavia, and east to the central Ural Mountains, the Caucasus, and northwestern Iran.
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.