Asia-Tropical: Philippines (Philippines present), Himalaya to Japan present
Himalaya to Japan (one record), Indochina; in Malesia: Philippines.
1 The rhizome branches frequently and may form large clusters. 3. Occasionally the margin of the pinnae is more serrate, and the pinnae alternate on the rachis. 2. This species appears to be seasonal. It hardly grows under perhumid, lowland conditions.