
Diplazium megaphylum
Athyriaceae
- Range
- Tokunoshima, Taiwan, China, Vietnam, and Myanmar
In the diorama, it grows lushly in a limestone creek bed.
In 2018, an unidentified fern was discovered on Tokunoshima. Follow-up research revealed that this mysterious fern is actually Diplazium megaphylum, a species found in China, Taiwan, Vietnam, and Myanmar, making Tokunoshima the only habitat for it in Japan.

Habitat of This Animal:
A:Forest along the valley - A1:Accessible forest
While there are also high mountains in Tokunoshima Island, there are also plateaus formed by raised coral reefs surrounding such mountains. These plateaus, with base rock made of Ryukyu limestone, formed a complicated terrain as a result of erosion. Forests growing on such plateau are made of plants preferring limestone soil, and this is one of the important factors characterizing the nature of Tokunoshima Island.
This A1:Accessible forest