Clades: Plagiogyrioideae;
Plagiogyriaceae;
Cyatheaceae.
Genus: 13 species; 10 in Asia, 3 in the Americas.
Region: China.
Habitat: forest soils, in mountainous areas of tropical and subtropical regions.
BotanyFern; remarkably similar to Blechnum.
Stem: scales are completely absent, most obvious at the rhizome apex.
Leaves: two kind of fronds, fertile fronds are longer than the sterile.