The main forest types in Malaysia are Giam Kanching or rare dipterocarp forest, mangrove forest, peat swamp forest, and montane ericaceous forest, according to the Worldwide Wildlife Fund. The dipterocarp tree, known for its fruit with two-winged seeds, grows on land that is just above sea level to an altitude of approximately 900 meters. Lowland dipterocarp forests, which are found up to 300 meters above sea level, have been decimated due to agriculture and other land-intensive activities. While a pocket of dipterocarp trees are protected in the Kanching Forest Reserve, this species is considered critically endangered---on the verge of extinction---on the Red List.
This carnivorous tropical plant grows only in mossy forests at a 2,000 to 2,600 meter altitude on Mount Trus Madi in Borneo. The Nepenthes macrophylla has pitcher-shaped leaves that dangle from ten meter-long vines. Insects slide from the waxy top of the flower into a pool of acid secreted by glands in the lower part of the flower, according to the ASEAN Review of Biodiversity & Environmental Conservation. The IUCN's Red List has categorized the Nepenthes macrophylla as critically endangered.
Considered critically endangered on Red List, Taxitheliella richardsii is a moss in the Sematophyllaceae family and native to Malaysia. The only known area (less than 10 km²) where the moss has been found is in Sarawak, a Malaysian state on northwest Borneo. Taxitheliella richardsii grows on woody vines and rotted logs in subtropical forests, a habitat that is disappearing due to wood harvesting and logging.