Carnivorous plants grow in places where the soil is thin or poor in nutrients such as rock outcroppings. The trapping mechanisms are found in carnivorous plants. These traps may be active or passive, depending on whether movement aids capture of prey.
Pitfall trap by an internal chamber pitfall traps are thought to be have evolved independently at least six to seven times. A passive trap, pitfall traps attract prey with nectar bribes secreted by the peristone and bright flower like patterning within the pitcher. The innings of most pitcher plants are covered in a loose coating of waxy flakes which are slippery for insects, causing them to fall into the pitcher. water can become trapped within the pitcher, making a habitat for other flora and fauna. This type of water body is called as phytotelma. In the genus the traps are clearly derived from simple rolled leaf whose margin have sealed together. These plants live in areas of high rainfall in South America.
The major group of the pitcher plants are the tropical pitcher plants. Most of species catch insects, although the larger ones, also accordingly take small mammals and reptiles. The only two active snap traps are venus fly trap and waterwheel plant had a common ancestor with the snap trap adaptation, which had evolved from an ancestral lineage that utilized flypaper traps. Their trapping mechanism had also been described as mouse trap.
The trapping mechanism of the sundew combines features of both flypaper and snap traps it has been termed a catapult flypaper trap.
Carnivorous plants contain compounds that have anti-fungal properties and may lead to the development of a new class of anti-fungal drugs that will be effective against infections that are resistant to current anti-fungal drugs. Carnivorous traps are fascinating because even when they are not trapping insects, their unusual forms are intriguing. However, you should not collect plants in the wild because most of them are relatively rare. Habitat destruction and over collection are two of the greatest conservation threats to carnivorous plants.