Sarraceniaceae

Sarraceniaceae are a family of pitcher plants, belonging to order Ericales (previously Nepenthales).
The family comprises three extant genera: "Sarracenia" (North American pitcher plants), "Darlingtonia" (the cobra lily or California pitcher plant), and "Heliamphora" (sun pitchers). The extinct "Archaeamphora longicervia" may also belong to this family. All three are carnivorous plants that lure insects with nectar and use their elongated, tube-shaped leaves filled with water and digestive enzymes to catch and consume them. Digestive enzymes are not always produced by the plants themselves. Digestive mutualisms are common in Sarraceniaceae: both "Sarracenia" and "Darlingtonia" rely on commensal bacteria to supplement or produce all of their enzymes. Many species also use downward-pointing hairs and waxy secretions to make it difficult for insects to escape.
"Sarracenia" and "Darlingtonia" are native to North America, while "Heliamphora" is native to South America. Phylogenetic analysis suggests that the family originated in South America about 47 million years ago and spread to North America soon after, about 35 million years ago. The "Sarracenia" and "Heliamphora" clade diverged from "Darlingtonia" around this time, most likely due to a cooling event at the beginning of the Oligocene. "Sarracenia" diverged from "Heliamphora" later, around 23 million years ago.
These plants grow in nutrient-poor, often acidic soil and use the insects as a nutritional supplement. As such, growth of carnivorous pitchers is plastic: as soil nitrogen increases, "Sarracenia" produces fewer pitchers. The pitchers originate from a rhizome and die back during the winter dormancy. Plants of the genus "Sarracenia" occur mostly in "Sphagnum" bogs.
Most Sarraceniaceae have tall, narrow pitchers that are vertical or nearly so. "Sarracenia purpurea", however, has short, squat, bulbous pitchers close to the ground, and "Sarracenia psittacina" has pitchers that grow horizontally.
The purple pitcher plant ("Sarracenia purpurea") is the official flower of Newfoundland and Labrador.