Pentarhizidium

Pentarhizidium is a genus of two Asian fern species. These species have formerly been included in Matteuccia or Onoclea.^[1] Recent genetic analysis has determined that these two species form a discrete clade that is basal to the rest of this fern group, and so have been located in their own genus. P. orientale is sometimes grown as a garden plant.

Pentarhizidium
Pentarhizidium orientale
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Suborder:	Aspleniineae
Family:	Onocleaceae
Genus:	Pentarhizidium Hayata 1928
Type species
Pentarhizidium japonicum Hayata 1928
Species
P. intermedium P. orientale
Synonyms
Onoclea section Pentarhizidium (Hayata 1928) Kato 1980

Species

• Pentarhizidium intermedium (Christensen 1913) Hayata 1928^[1]
• Pentarhizidium orientale (Hooker 1860) Hayata 1928^[1]