Distribution and habitat
Andaman Is., Assam, Bangladesh, Jawa, Laos, Malaya, Myanmar, Nicobar Is., the Philippines, Sulawesi, Sumatera, Thailand, and Vietnam. In the Philippines, the species was so far only been found in Pasonanca Natural Park, Zamboanga City, Western Mindanao where it grows in shaded broad leaf forest associated with bamboo and other plants species along the riverside at approximately 150–250 m a.s.l. and was assessed as locally rare. Based on Hou (1984) observations, the species can be found in the forest characterized by shade and moisture, and sometimes in bamboo or teak forest. Occasionally, they can be also found in secondary forest, rarely on limestone, locally sometimes common, from the lowland up to 1200 m (Hou 1984).