Strangler fig trees are common in the peat swamp area. Meanwhile, mixed dipterocarp forests is present up to 800 metres in altitude. Examples of trees found in this region are: "Shorea", Durian, "Garcinia", "Calophyllum" and "Eugenia". Between 800 and 1,200 metres, lower montane forests emerged. "Quercus subsericea" dominated this region. Upper montane forests is found between 1,200 and 2,170 metres. Epiphytes is abundant in this region. The canopy is between 10 and 20 metres in height. The Upper montane forests can be divided into short facies, tall facies, and stunted summit facies. Small trees and shrubs such as "Rhododendron" and "Vaccinium", and pitcher plants such as "Nepenthes lowii", "Nepenthes tentaculata", and "Nepenthes muluensis" are all endemic to Mount Mulu.