Sarraceniaceae are a family of pitcher plants, belonging to order Ericales (reassigned from Nepenthales).

[4] 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 mutualisms are common in Sarraceniaceae: both Sarracenia and Darlingtonia rely on commensal bacteria to supplement or produce all of their enzymes.

[6] The Sarracenia and Heliamphora clade diverged from Darlingtonia around this time, most likely due to a cooling event at the beginning of the Oligocene.

[7][8] The Sarracenia and Heliamphora clade could have diverged from Darlingtonia around 54 million years ago during Early Eocene.