Mount Mulu
Mulu's limestone karst and isolated mountain peaks are home to many unique and endangered plants and animals. The mountain has biological systems range from lowland dipterocarp forest to montane vegetations. The mountain is notable for its pitcher plant diversity. Five species have been recorded from Mount Mulu: "Nepenthes hurrelliana", "Nepenthes lowii", "Nepenthes muluensis", "Nepenthes tentaculata", and "Nepenthes vogelii".