Sarracenia

Sarracenia, commonly called North American pitcher plants or trumpet pitchers, is a genus of 8 to 11 species native to the wetlands of eastern North America, from the Gulf Coast to the subarctic bogs of Canada. The plants form upright, tubular pitchers with nectar-secreting rims that attract insects; downward-pointing hairs inside the tube prevent escape, and a pool of digestive fluid at the base dissolves and absorbs prey. Striking patterns of red veining and translucent windows on the pitcher and lid make many species highly ornamental, and their spring flowers are also attractive. Cultivation requires acidic, nutrient-poor media such as sphagnum or a peat-perlite mix, with tray watering using only pure or rainwater. Full sun is essential for good coloration, and a cold winter dormancy is critical for the plants' long-term health.

Source: Wikipedia (CC BY-SA 4.0)

Photosynthesis + insects captured in tubular pitchers