Posted by: Kirsten Pisto, Communications Stepping into the greenhouse at Woodland Park Zoo, I am hit with a hot, humid air that smells of fertilizer, earth and some wildly primal perfumes. In the farthest corner is a table smothered in a muddle of vines, twisting tendrils and mysterious red and pink flanked vessels. Welcome to the land of the endangered old world pitcher plants, Nepenthes . A dangerous view for a curious insect, the vibrant red lip on this pitcher plant is both tempting and deadly. I tracked down Woodland Park Zoo gardener and pitcher plant enthusiast, Justin Schroeder, who had a lot to say about these endangered carnivores. Old world pitcher plants live in very remote areas, deep in the hillsides of tropical Asia. They prefer sunny ridges and slopes to thick jungles. Rain and high humidity are important elements of their environment as they like a permanently wet soil. Old world pitcher plants can grow epiphytically, atop other plants, trees or logs