Aspleniineae Temporal range: Kimmeridgian–Recent PreꞒ Ꞓ O S D C P T J K Pg N [1]
Asplenium adiantum-nigrum, the black spleenwort
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Suborder:	Aspleniineae H.Schneid. & C.J.Rothf.[2]
Families[2]
Aspleniaceae Newman Athyriaceae Alston Blechnaceae Newman Cystopteridaceae Shmakov Desmophlebiaceae Mynssen Diplaziopsidaceae X.C.Zhang & Christenh. Hemidictyaceae Christenh. & H.Schneid. Onocleaceae Pic.Serm. Rhachidosoraceae X.C.Zhang Thelypteridaceae Ching ex Pic.Serm. Woodsiaceae Herter
Synonyms
Blechnales Pic.Serm. ex Reveal

Aspleniineae is a suborder of ferns in the order Polypodiales. It is equivalent to the clade eupolypods II in earlier systems;^[2][3] it is also treated as a single very broadly defined family Aspleniaceae.^[4] The suborder generally corresponds with the order Blechnales as described by J. L. Reveal in 1993.^[5] Aspleniineae includes some important ferns, including Onoclea sensibilis, the sensitive fern, which grows as a virtual weed throughout much of its temperate North American range, and ferns of the genus Thelypteris, a genus that has shown remarkable speciation. It also includes one of the more common horticultural ferns, Matteuccia struthiopteris, the ostrich fern.

Taxonomy

In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the group is treated as the suborder Aspleniinae, and divided into 11 families.^[2] Alternatively, it may be treated as a single, very broadly circumscribed family Aspleniaceae sensu lato, which is then divided into subfamilies.^[4] The relationship between the two approaches is shown in the table below.

References