Phylum [Tracheophyta] Sinnott ex Caval.-Sm. (1998) - vascular plants Subphylum Polypodiophytina Reveal (1996) [monotypic] Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns Subclass Polypodiidae Cronquist, Takht. & Zimmerm. (1966) Order Polypodiales Link (1833) - cathetogyrates (eupolypods) Suborder Aspleniineae H.Schneid. & C.J.Rothf. (2016) Family Blechnaceae Newman (1844) - blechnoids Subfamily Stenochlaenoideae (Ching) J. P. Roux Genus Telmatoblechnum L.R. Perrie, D.J. Ohlsen & P.J. Brownsey in L.R. Perrie et al. (2014)