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).