Carnivorous Plants • ~600 species • Sundews • Pitcher plants • Bladderworts • Butterworts • Why are the plants carnivorous? • Why do the victims fall for it?
Nitrogen-poor Habitats • Why? • How do the plants attract prey? • Fate of the prey • Acidity and enzymes • Is escape possible? • Other plant-insect relationships • Ants swim in to steal prey • Habitat for mosquitoes, craneflies, and frogs?
Sundews, Drosera sp. Thread-leaved Sundew Drosera filiformis Round-leafed Sundew Drosera rotundifolia
Spatulate-leaved Sundew Drosera intermedia
Old World Pitcher Plants Nepenthes rajah
Nepanthes sp. N. bicalcarata N. gracilis May use hood as a raindrop triggered trapdoor.
Nepenthes ampullaria Catches leaf litter & debris as well as insects
Nepenthes lowii Lid secretes copious sugary crystals that attract tree shrews who then defecate into the pitcher