Plenasium javanicum

Plenasium javanicum is a fern in the family Osmundaceae.^[1] The genus Plenasium is recognized in the Pteridophyte Phylogeny Group classification of 2016 (PPG I);^[2][3] however, some sources place all Plenasium species in a more broadly defined Osmunda, treating this species as Osmunda javanica.^[4] It has a wide native distribution in south-eastern Asia, being found in the Eastern Himalaya, south-central and south east China (including Hainan), Indochina, the Philippines, Borneo, Sumatra, Sulawesi and Java.^[1][4]

Plenasium javanicum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Osmundales
Family:	Osmundaceae
Genus:	Plenasium
Species:	P. javanicum
Binomial name
Plenasium javanicum (Blume) C.Presl
Synonyms[1]
Osmunda javanica Blume