American Pitcher Plants use color, nectar, and scent to lure insects into their slippery tubes, which are lined with downward-facing hairs to prevent escape. A pool of digestive acids at the bottom of each tube breaks the trapped insects down into nitrates and phosphates, which the plant then absorbs as nutrients. These carnivorous plants are native to North America and prey on ants, flies, wasps, bees, beetles, slugs, and snails.