Question

Which of the following is called a pitcher plant?
A. Utricularia
B. Drosera
C. Aristolochia
D. Nepenthes

Answer 1

Pitcher plants are members of the Sarraceniaceae family. These plants can grow in a wide range of habitats, i.e., poor soil, sandy coastal swamps, barren lands, etc., because of the carnivorous nature of pitcher plants.

Complete answer: Pitcher plants belong to the order Ericales and are carnivorous plants, i.e. they depend on other animals for food. The leaves of pitcher plants are of pitcher shape that has a massive pit to trap the prey. The family Sarraceniaceae has three genera of pitcher plants found in very diverse habitats. The pitcher plant depends on other animals to obtain nutrients like phosphorus and nitrogen. The body of the pitcher plant contains digestive enzymes that digest the prey. Plants like Nepenthes that belong to the family Nepenthaceae, Sarraceniaceae, etc. are the carnivorous or insectivorous plants that attract and trap the prey with the help of nectar. Members of the Sarraceniaceae family have different shapes of traps like urns, trumpets, or pitcher shapes.
Hence, the correct answer is option D.

Additional information: Pitcher plants fall in the category of insectivorous plants. There are many other insectivorous plants that use modified leaves to trap small prey in order to survive in poor soil conditions.

Note: The family Nepenthaceae has only one genus and over 100 species while the family Sarraceniaceae has three genera, genus Sarracenia , genus Heliamphora , and genus Darlingtonia. Some of the insectivorous (carnivorous plants) plants are Venus flytrap, water wheel, sundew, etc.