What types of pitcher plants are there?

There are several types of pitcher plants, primarily categorized into two families: Sarraceniaceae and Nepenthaceae. Sarraceniaceae includes species like the North American pitcher plants (Sarracenia), which feature tall, tubular leaves that trap insects. Nepenthaceae, on the other hand, includes tropical pitcher plants (Nepenthes), known for their unique, often colorful, and diverse shapes that attract and digest prey. Additionally, there are intermediate forms like the Heliamphora from South America, which also exhibit pitcher-like structures.