Other notable characteristics
Like all Sarracenia flavas, S. flava var. flava has an arsenal of bug-catching tactics. For instance, not only are their downward pointing needle-like hairs on the lid of the plant, but also deep within the pitcher, at its lowest point. These prevent upward escape. In addition to this, the interior of pitchers are waxy and smooth, preventing insects from getting a solid a foothold to claw their way to freedom. Digestive juices do their part to drown and dissolve an insect’s soft tissues. Liquid levels rise as more insects are caught and pile up within the pitcher.
Trumpet pitcher plants also produce phyllodia, a second type of leaf, in the late summer. Phyllodia are flat, long, straight or curled, and come to a point at their ends. Unlike pitchers, they are not carnivorous. Unlike the pitchers that die back during dormancy, these phyllodia can stick with the pitcher plant until the next growing season, perhaps providing a means to photosynthesize during winter months.